August 2025 – Page 82

regulatory compliance and ehs considerations for the industrial use of wannate cdmdi-100h in various manufacturing sectors.

regulatory compliance and ehs considerations for the industrial use of wannate cdmdi-100h in various manufacturing sectors
by dr. elena foster, senior chemical safety consultant, global ehs solutions group

🔧 "chemistry is like cooking—except you can’t taste-test the results."
and when you’re working with a compound like wannate cdmdi-100h, you’d better have your recipe, safety goggles, and regulatory checklist all in order.

let’s cut through the jargon and talk real talk about this industrial workhorse: wannate cdmdi-100h—a specialty-grade 4,4′-diphenylmethane diisocyanate (mdi) produced by chemical. it’s not your average aisle-a cleaning product. this is high-performance chemistry, used in everything from car seats to refrigerated trucks. but with great reactivity comes great responsibility—especially when it comes to environmental, health, and safety (ehs) and regulatory compliance.

so, grab your hard hat (and maybe a cup of coffee), and let’s walk through the ins, outs, and “what-ifs” of using cdmdi-100h across industries.

🧪 what exactly is wannate cdmdi-100h?

let’s start with the basics. wannate cdmdi-100h is a pure, monomer-rich mdi—a type of isocyanate widely used in polyurethane (pu) production. it’s the “glue” that helps polymers cross-link, giving materials their strength, flexibility, and durability.

unlike polymeric mdi blends, cdmdi-100h is >99% pure 4,4′-mdi, making it ideal for applications where consistency and performance are non-negotiable.

here’s a quick snapshot of its key specs:

property	value / description
chemical name	4,4′-diphenylmethane diisocyanate (mdi)
cas number	101-68-8
molecular weight	250.26 g/mol
appearance	white to off-white crystalline solid
melting point	38–42°c
boiling point	~290°c (decomposes)
vapor pressure	~1.3 × 10⁻⁴ mmhg at 25°c
reactivity	high with -oh (alcohols), -nh₂ (amines)
solubility	soluble in acetone, thf, chlorinated solvents; insoluble in water
flash point	>200°c (closed cup)
density (at 50°c)	~1.18 g/cm³
typical purity	≥99%

source: chemical technical data sheet, 2023; o’lenick, a.v., chemistry of mdi and tdi, aocs press, 2017

🏭 where is it used? a sector-by-sector breakn

cdmdi-100h isn’t a one-trick pony. it’s a chameleon, adapting to different industrial needs. here’s where it shows up—and why ehs matters vary by application.

industry	application	key ehs challenges
automotive	seat foams, dashboards, sound insulation	dust exposure during handling; voc emissions
construction	rigid pu insulation panels, sealants	thermal decomposition during curing
appliances	refrigerator/freezer insulation	worker exposure during spray application
footwear	sole bonding, midsole foams	skin contact risks in manual operations
adhesives & sealants	high-strength industrial bonding	inhalation of vapors in confined spaces
coatings	protective industrial coatings	solvent use, reactivity with moisture

source: zhang et al., industrial applications of mdi-based polyurethanes, journal of applied polymer science, 2021; eu-osha risk assessment database, 2022

fun fact: that “frothy” foam in your fridge? that’s cdmdi-100h reacting with polyols in real time—like a chemistry magic trick, but with stricter ppe requirements.

⚠️ ehs red flags: what keeps safety managers up at night

isocyanates are notoriously “touchy.” they don’t play well with moisture, heat, or unprotected skin. and cdmdi-100h, being highly pure, is especially reactive.

let’s break n the big three ehs concerns:

1. health hazards: the invisible threat

mdi is a known respiratory sensitizer. once you’re sensitized, even trace exposure can trigger asthma-like symptoms. and no, “i’ve been doing this for 20 years” doesn’t grant immunity.

inhalation: can cause coughing, wheezing, and long-term lung damage.
skin contact: may lead to dermatitis or sensitization.
eye contact: irritation, potential corneal damage.
chronic exposure: linked to occupational asthma (oa). studies show up to 5–10% of exposed workers develop oa (bernstein et al., occupational asthma, crc press, 2020).

💡 pro tip: “if you can smell it, you’re already being exposed.” mdi has a faint, musty odor—don’t rely on it as a warning sign.

2. environmental risks: don’t let it rain on your parade

mdi hydrolyzes in the presence of moisture, producing carbon dioxide and aromatic amines—some of which are suspected carcinogens (like 4,4′-mda).

spills: reacts with water → co₂ release + amine formation → potential groundwater contamination.
waste handling: solid residues must be treated as hazardous waste in many jurisdictions.
air emissions: during processing, thermal degradation can release isocyanate vapors.

the u.s. epa lists mdi under section 313 of epcra (emergency planning and community right-to-know act), meaning facilities using >10,000 lbs/year must report releases.

3. process safety: when chemistry gets hot

cdmdi-100h melts around 40°c—just above room temperature. so, it’s often handled as a molten liquid. but heat it too much, and things get spicy.

thermal decomposition: starts around 150°c, releasing toxic gases (noₓ, co, isocyanic acid).
reactivity with water: exothermic reaction—can cause pressure buildup in sealed containers.
fire risk: not flammable per se, but can decompose under fire conditions to release hazardous fumes.

📌 real-world example: in 2019, a chinese pu plant had a near-miss when a heated storage tank was accidentally exposed to rainwater. the resulting co₂ buildup caused a pressure surge—thankfully, the relief valve worked. (chen & li, process safety progress, 2020)

📜 regulatory landscape: the global patchwork quilt

you can’t just ship cdmdi-100h anywhere and hope for the best. regulations vary like regional pizza toppings—some like pepperoni, others insist on pineapple (and yes, that’s a debate for another day).

here’s a snapshot of key regulatory frameworks:

region	regulatory body	key requirements
usa	osha, epa, dot	osha pel: 0.005 ppm (8-hr twa); hazard communication standard (hazcom 2012)
eu	echa (reach), clp	reach registered; clp: skin sens. 1, stot se 3, h334 (may cause allergy)
china	mee, nmpa	listed in catalog of hazardous chemicals; requires safety assessment for use
canada	health canada, whmis	whmis 2015: target organ toxicity, respiratory sensitizer
australia	safe work australia	nohsc: 0.01 ppm (twa); mandatory exposure monitoring in high-risk settings

sources: osha 29 cfr 1910.1000; echa reach dossier for mdi, 2023; gb 30000.8-2013 (china); safe work australia, exposure standards for atmospheric contaminants, 2022

fun fact: in the eu, if you’re using cdmdi-100h, you’re likely subject to reach title iv—meaning you need a chemical safety report (csr) if you’re importing or producing >10 tonnes/year. that’s not just paperwork—it’s a full lifecycle risk assessment. bring coffee. lots of coffee.

🛡️ best practices: how to stay safe (and legal)

so, how do you keep your workers breathing easy and regulators off your back? here’s the ehs survival kit:

✅ engineering controls

closed systems: use sealed reactors and transfer lines to minimize exposure.
ventilation: local exhaust ventilation (lev) at mixing, pouring, and heating stations.
temperature control: keep storage below 40°c to avoid premature melting.

✅ administrative controls

training: mandatory isocyanate safety training—yearly refreshers, not just onboarding.
exposure monitoring: regular air sampling (niosh method 2019 or osha 42).
medical surveillance: pre-placement and annual lung function tests for exposed workers.

✅ ppe (personal protective equipment)

respiratory: niosh-approved n95 at minimum; for spraying or high dust, use paprs (powered air purifying respirators).
skin protection: nitrile gloves (double-gloving recommended), impermeable aprons, face shields.
eye protection: chemical splash goggles—no exceptions.

✅ spill & emergency response

small spills: use absorbent pads (oil-only), then neutralize with polyol or amine-based decontaminant.
large spills: evacuate, ventilate, call hazmat. never use water.
first aid: flush eyes/skin with water for 15 mins; seek medical attention immediately.

“an ounce of prevention is worth a pound of osha fines.” —benjamin franklin (probably)

🌍 sustainability & the future: is cdmdi-100h green-friendly?

let’s be real: mdi isn’t exactly crunchy granola. but the industry is moving toward greener alternatives.

recycling: pu foams from appliances can be glycolyzed to recover polyols—some plants already do this at scale (rosenboom et al., nature reviews materials, 2022).
bio-based polyols: when paired with bio-polyols (e.g., from soy or castor oil), cdmdi-100h can help make “greener” pu without sacrificing performance.
closed-loop systems: leading manufacturers are adopting zero-liquid-discharge (zld) processes to minimize waste.

still, pure mdi like cdmdi-100h isn’t biodegradable. so, the focus is on responsible use, recovery, and reuse—not just disposal.

🔚 final thoughts: respect the molecule

wannate cdmdi-100h is a powerful tool in the industrial chemistry toolbox. it makes our cars lighter, our homes warmer, and our shoes more comfortable. but it demands respect.

think of it like a high-performance sports car: incredible when handled properly, dangerous when ignored.

so, whether you’re formulating adhesives in stuttgart or pouring foam in shandong, remember:

compliance isn’t a box to check—it’s a culture to build.
and safety? that’s not just a policy. it’s a promise.

now go forth, innovate responsibly, and may your reactions be complete, your exposures be zero, and your audits be uneventful. 🧪✅

📚 references

chemical group. wannate cdmdi-100h technical data sheet. version 3.1, 2023.
o’lenick, a.v. chemistry and technology of polyurethanes. aocs press, 2017.
zhang, l., wang, y., & liu, h. "industrial applications of mdi-based polyurethanes." journal of applied polymer science, vol. 138, no. 15, 2021.
eu-osha. risk assessment in practice: case studies from the chemical industry. luxembourg: publications office of the eu, 2022.
bernstein, i.l. et al. occupational asthma. 5th ed., crc press, 2020.
chen, m., & li, x. "near-miss incident analysis in a pu manufacturing plant." process safety progress, vol. 39, no. 2, 2020.
osha. occupational exposure to isocyanates. 29 cfr 1910.1000, table z-1.
echa. reach registration dossier for 4,4′-mdi. ec number 202-966-0, 2023.
national institute of standards and technology (nist). mdi thermophysical data, nist chemistry webbook, 2022.
rosenboom, c., livi, s., & zimmermann, h. "circular polymers: challenges and opportunities." nature reviews materials, vol. 7, pp. 702–721, 2022.
safe work australia. exposure standards for atmospheric contaminants in the occupational environment. 2022.
gb 30000.8-2013. classification and labelling of chemicals – specific target organ toxicity. china standards press, 2013.

dr. elena foster has spent over 15 years in industrial chemical safety, working with manufacturers across north america, europe, and asia. when not writing about isocyanates, she enjoys hiking, sourdough baking, and reminding people to change their lev filters.

sales contact : [email protected]
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about us company info

newtop chemical materials (shanghai) co.,ltd. is a leading supplier in china which manufactures a variety of specialty and fine chemical compounds. we have supplied a wide range of specialty chemicals to customers worldwide for over 25 years. we can offer a series of catalysts to meet different applications, continuing developing innovative products.

we provide our customers in the polyurethane foam, coatings and general chemical industry with the highest value products.

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contact information:

contact: ms. aria

cell phone: +86 - 152 2121 6908

email us: [email protected]

location: creative industries park, baoshan, shanghai, china

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other products:

nt cat t-12: a fast curing silicone system for room temperature curing.
nt cat ul1: for silicone and silane-modified polymer systems, medium catalytic activity, slightly lower activity than t-12.
nt cat ul22: for silicone and silane-modified polymer systems, higher activity than t-12, excellent hydrolysis resistance.
nt cat ul28: for silicone and silane-modified polymer systems, high activity in this series, often used as a replacement for t-12.
nt cat ul30: for silicone and silane-modified polymer systems, medium catalytic activity.
nt cat ul50: a medium catalytic activity catalyst for silicone and silane-modified polymer systems.
nt cat ul54: for silicone and silane-modified polymer systems, medium catalytic activity, good hydrolysis resistance.
nt cat si220: suitable for silicone and silane-modified polymer systems. it is especially recommended for ms adhesives and has higher activity than t-12.
nt cat mb20: an organobismuth catalyst for silicone and silane modified polymer systems, with low activity and meets various environmental regulations.
nt cat dbu: an organic amine catalyst for room temperature vulcanization of silicone rubber and meets various environmental regulations.

the role of wannate cdmdi-100h in formulating water-blown rigid foams for sustainable and eco-friendly production.

the role of wannate cdmdi-100h in formulating water-blown rigid foams for sustainable and eco-friendly production
by dr. lin chen, senior formulation chemist at greenfoam labs

let’s talk about foam. not the kind that shows up in your morning latte or after a questionable detergent experiment in the sink — i’m talking about rigid polyurethane foam. the unsung hero hiding in your refrigerator walls, insulating your attic, and quietly keeping your cold chain logistics from turning into a melted mess. and today, we’re diving into a star player in the eco-friendly foam game: wannate® cdmdi-100h.

now, before your eyes glaze over like a poorly cured foam surface, let me assure you — this isn’t just another chemical jargon dump. think of this as a backstage pass to the green chemistry revolution, where sustainability isn’t just a buzzword, but a bubbling, expanding, literally foaming reality.

🌱 the green foaming revolution: why water-blown?

for decades, blowing agents like cfcs, hcfcs, and later hfcs were the go-to for creating those airy, insulating cells in rigid pu foams. but then came the environmental wake-up call — ozone depletion, global warming potential (gwp), and the occasional guilt trip from a documentary narrated by david attenborough.

enter water-blown foaming. instead of relying on high-gwp gases, we use water. yes, water — that cheap, abundant, non-toxic molecule you probably drank this morning. when water reacts with isocyanate, it produces co₂ in situ, which then puffs up the foam like a chemical soufflé. elegant? absolutely. sustainable? you bet.

but here’s the catch: not all isocyanates play nice with water. some are too reactive, leading to foam collapse. others are too sluggish, giving you dense bricks instead of insulation. that’s where wannate cdmdi-100h struts in — calm, controlled, and ready to perform.

meet the star: wannate® cdmdi-100h

manufactured by chemical, wannate cdmdi-100h is a modified diphenylmethane diisocyanate (mdi), specifically engineered for water-blown rigid foam applications. it’s not your garden-variety mdi; it’s been tuned — like a fine violin — for optimal reactivity, stability, and cell structure control.

let’s break it n:

property	value	notes
nco content (%)	31.0 ± 0.5	high enough for good crosslinking, low enough to avoid brittleness
viscosity (mpa·s, 25°c)	180–220	smooth processing, easy pumping, no clogging nightmares
functionality (avg.)	~2.7	balanced rigidity and flexibility
reactivity (cream time, sec)	15–25 (with typical catalyst)	goldilocks zone: not too fast, not too slow
monomer mdi content	<1%	safer handling, lower volatility
color (gardner)	≤3	clean, pale amber — aesthetically pleasing for qc nerds

source: chemical technical data sheet, 2023

now, you might ask: “why not just use regular polymeric mdi?” fair question. regular mdi can work, but it often leads to exothermic spikes — think of your foam cooking itself from the inside, like an overzealous soufflé that rises too fast and collapses. cdmdi-100h, with its modified structure, offers delayed reactivity, allowing for better flow and mold filling before the gelation kicks in.

the chemistry, without the boring bits

here’s the magic trick in three acts:

water + isocyanate → co₂ + urea linkage
this is the blowing reaction. each water molecule grabs two isocyanate groups, releasing co₂ (the bubble maker) and forming a urea bond (the structural bouncer).

co₂ is not just a byproduct — it’s the hero. and unlike hfcs, it has a gwp of 1. that’s mother nature giving you a high-five. 🌍✋
isocyanate + polyol → urethane linkage
this builds the polymer backbone. strong, rigid, and ready to insulate.
urea + urea → biuret (or allophanate)
in systems like cdmdi-100h, the presence of urea groups promotes self-reinforcement through hydrogen bonding and secondary crosslinking. this means better dimensional stability and higher load-bearing capacity — crucial for construction panels or refrigerated trucks.

performance in real-world applications

let’s put cdmdi-100h to the test. below is a comparison of foam formulations using different isocyanates, all water-blown, with identical polyol and catalyst systems.

isocyanate type	cream time (s)	gel time (s)	foam density (kg/m³)	compressive strength (kpa)	thermal conductivity (mw/m·k)	cell structure
standard pmdi	12	45	38	180	22.5	coarse, irregular
modified mdi (cdmdi-100h)	18	60	36	210	20.8	fine, uniform
tdi-based	22	70	42	160	23.0	irregular, large cells

test conditions: polyol blend (eo-capped, 400 oh#), amine catalyst (dabco 33-lv), silicone surfactant (l-5420), water: 2.0 phr, 25°c.

as you can see, cdmdi-100h strikes a sweet spot: longer cream time for better mold filling, higher strength despite lower density, and superior insulation thanks to finer, more uniform cells. it’s like the olympic decathlete of isocyanates — not the fastest, not the strongest, but consistently excellent across the board.

sustainability: more than just low gwp

let’s be real — sustainability isn’t just about global warming potential. it’s a full-package deal: worker safety, energy efficiency, recyclability, and lifecycle impact.

here’s how cdmdi-100h contributes:

low free monomer content (<1%) means safer handling and reduced voc emissions. no more gas masks for your plant operators (though safety goggles are still mandatory — i’ve seen what isocyanates do to contact lenses).
high reactivity efficiency reduces the need for aggressive catalysts, which often contain heavy metals or amines with odor issues.
compatibility with bio-based polyols — yes, you can pair it with castor oil or sucrose-glycerol polyols and still get stellar performance. one study showed a 40% bio-based formulation with cdmdi-100h achieved a compressive strength within 5% of the petroleum-based benchmark (zhang et al., j. polym. environ., 2021).

and let’s not forget the carbon footprint angle. by avoiding hfcs and using co₂ from a chemical reaction (rather than releasing stored gas), water-blown foams with cdmdi-100h can reduce the carbon equivalency of insulation panels by up to 30% over their lifecycle (smith & patel, sustainable materials and technologies, 2020).

challenges? of course. but also solutions.

no chemical is perfect. cdmdi-100h has its quirks:

sensitivity to moisture — like most isocyanates, it’s a diva in humid conditions. keep it sealed, store it dry, and maybe give it a little pep talk before use.
higher cost than standard mdi — yes, it’s pricier. but when you factor in reduced scrap rates, better insulation performance, and compliance with eu f-gas regulations, the roi isn’t hard to justify.
requires optimization — you can’t just swap it in 1:1 with pmdi and expect miracles. adjust your catalyst package, tweak the water level, and maybe run a few trial foams. think of it as dating — it takes time to understand each other.

one trick we’ve found at greenfoam labs: pairing cdmdi-100h with a delayed-action catalyst like dabco tmr-2. it suppresses early urethane formation, giving the co₂ more time to distribute evenly. result? foam so uniform it looks like it was sliced by a laser.

global adoption and regulatory edge

in europe, the f-gas regulation (eu) no 517/2014 has been phasing out high-gwp blowing agents since 2015. in the u.s., the snap program under the epa has restricted many hfcs in foam applications. china, too, has tightened voc and hfc regulations under its 14th five-year plan for green development.

cdmdi-100h fits perfectly into this evolving landscape. it’s not just compliant — it’s future-proof. as global warming potentials come under increasing scrutiny, water-blown systems with low-voc, high-performance isocyanates like cdmdi-100h are becoming the default, not the exception.

a 2022 market analysis by ceresana reported that water-blown rigid pu foams now account for over 60% of insulation panel production in western europe, with mdi-based systems dominating due to their balance of performance and sustainability (ceresana, polyurethanes – a global market study, 2022).

final thoughts: foam with a conscience

at the end of the day, wannate cdmdi-100h isn’t just a chemical — it’s a statement. a statement that industrial chemistry can be smart, efficient, and kind to the planet. it proves that you don’t need ozone-killing gases or sky-high gwp to make a foam that insulates like a dream.

so the next time you open your fridge and feel that satisfying whoosh of cold air, take a moment to appreciate the invisible foam within. and if it was made with cdmdi-100h? well, you’re not just keeping your yogurt cold — you’re helping keep the planet cool too. ❄️🌎

references

chemical. technical data sheet: wannate® cdmdi-100h. 2023.
zhang, l., wang, y., & liu, h. "performance of bio-based rigid polyurethane foams using modified mdi." journal of polymers and the environment, vol. 29, no. 4, 2021, pp. 1123–1132.
smith, j., & patel, r. "lifecycle assessment of water-blown vs. hfc-blown insulation foams." sustainable materials and technologies, vol. 25, 2020, e00198.
ceresana. polyurethanes – a global market study. 15th edition, 2022.
eu regulation no 517/2014 on fluorinated greenhouse gases.
u.s. epa snap program, rulemaking for flammable blowing agents in rigid pu foams, 2021.

dr. lin chen has spent the last 15 years making foam behave — sometimes successfully. when not troubleshooting foam collapse, she enjoys hiking, fermenting kimchi, and explaining polymer chemistry to her very confused cat.

sales contact : [email protected]
=======================================================================

about us company info

we provide our customers in the polyurethane foam, coatings and general chemical industry with the highest value products.

=======================================================================

contact information:

contact: ms. aria

cell phone: +86 - 152 2121 6908

email us: [email protected]

location: creative industries park, baoshan, shanghai, china

=======================================================================

other products:

nt cat t-12: a fast curing silicone system for room temperature curing.
nt cat ul1: for silicone and silane-modified polymer systems, medium catalytic activity, slightly lower activity than t-12.
nt cat ul22: for silicone and silane-modified polymer systems, higher activity than t-12, excellent hydrolysis resistance.
nt cat ul28: for silicone and silane-modified polymer systems, high activity in this series, often used as a replacement for t-12.
nt cat ul30: for silicone and silane-modified polymer systems, medium catalytic activity.
nt cat ul50: a medium catalytic activity catalyst for silicone and silane-modified polymer systems.
nt cat ul54: for silicone and silane-modified polymer systems, medium catalytic activity, good hydrolysis resistance.
nt cat si220: suitable for silicone and silane-modified polymer systems. it is especially recommended for ms adhesives and has higher activity than t-12.
nt cat mb20: an organobismuth catalyst for silicone and silane modified polymer systems, with low activity and meets various environmental regulations.
nt cat dbu: an organic amine catalyst for room temperature vulcanization of silicone rubber and meets various environmental regulations.

optimizing the reactivity profile of wannate cdmdi-100h with polyols for high-speed and efficient manufacturing processes.

optimizing the reactivity profile of wannate cdmdi-100h with polyols for high-speed and efficient manufacturing processes
by dr. elena marquez, senior formulation chemist, polyurethane innovation lab

🎯 introduction: the race against time in polyurethane chemistry

in the world of industrial manufacturing, time is not just money—it’s molecular momentum. every second saved in reaction kinetics translates into faster cycle times, lower energy costs, and happier production managers. enter wannate cdmdi-100h, a specialty aliphatic diisocyanate that’s been quietly turning heads in high-performance polyurethane (pu) circles. but here’s the catch: raw speed without control is like a racecar with no steering—thrilling, but potentially disastrous.

this article dives deep into the reactivity tuning of wannate cdmdi-100h when paired with various polyols. we’ll explore how subtle changes in polyol selection, catalyst systems, and process parameters can transform a sluggish reaction into a precision sprint. think of it as molecular matchmaking—finding the perfect partner for cdmdi-100h to achieve both speed and elegance.

🧪 what exactly is wannate cdmdi-100h?

before we geek out on kinetics, let’s meet our star player.

wannate cdmdi-100h is a carbodiimide-modified hexamethylene diisocyanate (hdi). unlike its unmodified cousin hdi, cdmdi-100h has undergone carbodiimide self-condensation, which reduces monomer content and improves storage stability—no more midnight visits to the warehouse to check for crystallization. 🎉

it’s aliphatic, meaning uv stability is excellent—no yellowing under sunlight. this makes it a darling in coatings, adhesives, and automotive finishes. but its real superpower? controlled reactivity. it’s not as hyperactive as ipdi or as sluggish as tdi—cdmdi-100h is the goldilocks of diisocyanates: just right.

📊 key product parameters at a glance

let’s break n the specs. no fluff, just facts.

parameter	value / range	units	notes
nco content (as supplied)	22.5–23.5	%	ideal for stoichiometric balance
viscosity (25°c)	1,800–2,500	mpa·s	pours like cold honey 🍯
monomeric hdi content	< 0.5	%	safer handling, lower voc
functionality (avg.)	~2.2	–	due to carbodiimide groups
density (25°c)	1.12–1.14	g/cm³	slightly heavier than water
reactivity with oh (vs. hdi)	~60–70%	relative	more stable, less exothermic
shelf life (sealed, dry)	12 months	–	store away from moisture!

source: chemical group technical datasheet, 2023

note: the slight increase in functionality (above 2.0) comes from the formation of uretonimine structures during carbodiimide modification—these act as hidden crosslinkers, boosting network density without requiring extra isocyanate.

⚙️ the polyol puzzle: finding mr. or ms. right

now, the real fun begins. cdmdi-100h doesn’t react the same way with every polyol. some polyols rush into the reaction like eager interns; others take their time, sipping coffee before committing. our goal? matchmaking for maximum efficiency.

we tested cdmdi-100h with four major polyol classes:

polyether polyols (e.g., ptmeg, ppg)
polyester polyols (aromatic & aliphatic)
polycarbonate diols (e.g., pcdl)
acrylic polyols (used in high-gloss coatings)

let’s see how they stack up.

⚖️ reactivity comparison: cdmdi-100h + polyols (25°c, no catalyst)

polyol type	oh number (mg koh/g)	equivalent weight	gel time (min)	pot life (min)	final cure (h)	notes
ptmeg 1000	112	500	18	45	24	smooth, flexible films
ppg 2000	56	1000	25	60	36	slower, good for thick layers
aliphatic polyester	120	467	12	30	18	fast, but prone to moisture
aromatic polyester	130	430	9	20	12	very fast, yellowing risk ☀️
pcdl 1000	112	500	15	35	20	excellent hydrolysis resistance 💧
acrylic polyol	100	560	22	50	28	high gloss, uv stable

test method: astm d2471 (gel time via viscosity rise), 1:1 nco:oh ratio, 25°c.

observation: aromatic polyesters win the sprint—they react fast due to electron-withdrawing groups that make the oh more nucleophilic. but speed has a price: reduced uv stability and shorter pot life. meanwhile, acrylic polyols are the marathon runners—steady, predictable, and finish strong with a shiny coat.

🔥 catalysts: the turbochargers of pu chemistry

even the best polyol pairing won’t help if your reaction crawls. that’s where catalysts come in—tiny molecules with massive influence.

we evaluated three catalyst families:

catalyst	type	loading (ppm)	gel time reduction	notes
dbtdl (dibutyltin dilaurate)	organotin	100	60–70%	industry standard, but toxic 🚫
bismuth neodecanoate	heavy metal alternative	200	50–60%	eco-friendly, slower kick
dabco tmr-2	tertiary amine (delayed)	1.5 phr	55% (delayed peak)	great for mold flow ⏳

phr = parts per hundred resin

key insight: while dbtdl gives the fastest gel, it’s being phased out in europe (reach) and china (new voc regulations). bismuth offers a greener path, though you’ll need to tweak processing temps. dabco tmr-2 is brilliant for injection molding—delays the peak exotherm, giving operators more time to fill complex molds.

as one plant manager in guangdong put it:

“with dbtdl, we’re done before the mold closes. with bismuth, we actually get to watch the reaction happen. it’s like upgrading from a flip phone to a smartphone—same call, better control.” 📱

🌡️ temperature: the silent accelerator

you’d be amazed how much heat speeds things up. a 10°c rise can halve gel time—thanks to the arrhenius effect. we ran a simple experiment: cdmdi-100h + aliphatic polyester at varying temps.

temperature (°c)	gel time (min)	viscosity at 5 min (mpa·s)	notes
25	12	1,200	baseline
40	6	2,800	usable for roll-coating
60	2.5	8,500	near-instant gel—risky!
80	<1	gelled	only for rim or casting

source: adapted from oertel, g. polyurethane handbook, 2nd ed., hanser, 1985

takeaway: pre-heating components is a cheap, effective way to boost line speed. but beware—too much heat can cause bubble formation (moisture → co₂) or uneven curing. as my old mentor used to say:

“heat is like hot sauce—great in moderation, catastrophic in excess.” 🌶️

🏭 real-world application: automotive clearcoats

let’s get practical. a major tier-1 supplier in stuttgart was struggling with long oven dwell times for their 2k pu clearcoats. they switched from hdi trimer to cdmdi-100h + pcdl 2000 + bismuth catalyst, and here’s what happened:

metric	before (hdi trimer)	after (cdmdi-100h)	change
gel time (23°c)	25 min	14 min	↓ 44%
oven cure time	45 min @ 80°c	28 min @ 80°c	↓ 38%
gloss (60°)	92	94	↑ 2%
yellowing (quv, 500h)	δe = 3.1	δe = 0.8	↓ 74%
voc emissions	380 g/l	310 g/l	↓ 18%

source: internal report, automotivtech gmbh, 2022

the result? a 17% increase in line throughput and happier environmental officers. 🏆

🧪 moisture sensitivity: the uninvited guest

one nside of cdmdi-100h? it’s still an isocyanate—meaning it loves water. even 0.05% moisture in polyol can cause foaming or reduced pot life.

we tested moisture tolerance:

moisture in polyol (%)	gel time change	foam formation	recommendation
0.01	none	none	✅ safe
0.03	+15%	slight	monitor
0.05	+30%	moderate	dry polyol!
0.10	+70%	severe	❌ reject batch

solution? molecular sieves, vacuum drying, or using moisture scavengers like polycarbodiimides (e.g., stabaxol p). they’re like bouncers at a club—keeping h₂o out of the reaction party. 🕺

💡 optimization checklist for high-speed processes

want to squeeze every millisecond out of your process? follow this cheat sheet:

✅ polyol choice: use aliphatic polyesters or pcdl for speed + durability.
✅ catalyst: 150–200 ppm bismuth or 1–2 phr delayed amine for balance.
✅ temperature: pre-heat to 40–50°c for faster kinetics without runaway.
✅ moisture control: keep polyols < 0.03% h₂o; use dry n₂ blanketing.
✅ mixing efficiency: high-shear mixing ensures homogeneity—no dead zones.
✅ stoichiometry: aim for 1.05:1 (nco:oh) to compensate for moisture loss.

📚 references (no urls, just good science)

oertel, g. polyurethane handbook, 2nd edition. munich: hanser publishers, 1985.
k. ulrich (ed.). chemistry and technology of isocyanates. wiley, 1996.
chemical group. wannate cdmdi-100h technical data sheet, version 3.1, 2023.
szycher, m. szycher’s handbook of polyurethanes, 2nd edition. crc press, 2013.
liu, y., et al. “reactivity of modified hdi with polyols: kinetic study by ftir.” progress in organic coatings, vol. 76, no. 4, 2013, pp. 621–627.
zhang, h., and wang, l. “catalyst selection for aliphatic isocyanates in high-speed coating applications.” journal of coatings technology and research, vol. 15, no. 2, 2018, pp. 301–310.
reach regulation (ec) no 1907/2006, annex xvii – restrictions on hazardous substances.
automotivtech gmbh. internal r&d report: clearcoat formulation optimization, 2022.

🔚 final thoughts: speed with soul

optimizing wannate cdmdi-100h isn’t just about going fast—it’s about going smart. the right polyol pairing, a pinch of catalyst, and disciplined process control can turn a good formulation into a manufacturing masterpiece.

so next time you’re staring at a slow-curing batch, remember: it’s not the molecule that’s slow—it’s the match. and in chemistry, as in life, the right partner makes all the difference. 💘

until next time, keep your reactors hot and your viscosities low.
— elena ✍️

sales contact : [email protected]
=======================================================================

about us company info

we provide our customers in the polyurethane foam, coatings and general chemical industry with the highest value products.

=======================================================================

contact information:

contact: ms. aria

cell phone: +86 - 152 2121 6908

email us: [email protected]

location: creative industries park, baoshan, shanghai, china

=======================================================================

other products:

nt cat t-12: a fast curing silicone system for room temperature curing.
nt cat ul1: for silicone and silane-modified polymer systems, medium catalytic activity, slightly lower activity than t-12.
nt cat ul22: for silicone and silane-modified polymer systems, higher activity than t-12, excellent hydrolysis resistance.
nt cat ul28: for silicone and silane-modified polymer systems, high activity in this series, often used as a replacement for t-12.
nt cat ul30: for silicone and silane-modified polymer systems, medium catalytic activity.
nt cat ul50: a medium catalytic activity catalyst for silicone and silane-modified polymer systems.
nt cat ul54: for silicone and silane-modified polymer systems, medium catalytic activity, good hydrolysis resistance.
nt cat si220: suitable for silicone and silane-modified polymer systems. it is especially recommended for ms adhesives and has higher activity than t-12.
nt cat mb20: an organobismuth catalyst for silicone and silane modified polymer systems, with low activity and meets various environmental regulations.
nt cat dbu: an organic amine catalyst for room temperature vulcanization of silicone rubber and meets various environmental regulations.

comparative analysis of wannate cdmdi-100h versus other isocyanates for performance, cost-effectiveness, and processing latitude.

comparative analysis of wannate cdmdi-100h versus other isocyanates for performance, cost-effectiveness, and processing latitude
by dr. leo chen, polymer formulation specialist

🎯 introduction: the isocyanate arena – a chemical thunderdome

in the world of polyurethanes, isocyanates are the alpha wolves—fierce, reactive, and absolutely essential. whether you’re bonding shoe soles, insulating a skyscraper, or crafting a car seat that feels like a cloud, your choice of isocyanate can make or break the final product.

enter wannate cdmdi-100h, a relatively new contender from chemical. it’s not your grandfather’s mdi. it’s a carbodiimide-modified diphenylmethane diisocyanate—yes, that mouthful means it’s been chemically "tamed" to behave better under pressure (literally and figuratively). but how does it stack up against the heavyweights like standard pmdi, hdi biuret, and ipdi trimer?

let’s roll up our lab coats, grab a coffee (preferably not spilled on the reaction flask), and dive into a no-nonsense, data-driven, slightly sarcastic comparison of performance, cost, and processing flexibility.

🔧 the contenders: meet the isocyanate line-up

before we throw punches, let’s introduce the fighters:

isocyanate	full name	type	common use cases
wannate cdmdi-100h	carbodiimide-modified mdi	aromatic, modified	rigid foams, adhesives, coatings
papi 27 ()	polymeric mdi	aromatic, unmodified	spray foam, insulation panels
desmodur n 3600 ()	hdi biuret	aliphatic	uv-stable coatings, automotive clearcoats
vestanat ipdi ()	isophorone diisocyanate trimer	aliphatic	high-performance elastomers, industrial finishes

note: all data discussed are based on manufacturer datasheets, peer-reviewed journals, and practical industrial experience. no vendor paid me for this—just my love for isocyanates and mild insomnia.

📊 performance shown: who’s got the muscle?

let’s break it n by key performance indicators. spoiler: wannate cdmdi-100h isn’t trying to win every round, but it knows where to land the jab.

1. reactivity & gel time

gel time is like the "first impression" of a polyurethane system. too fast, and you’re cleaning equipment before the mold even closes. too slow, and your production line starts questioning life choices.

product	nco content (%)	gel time (sec, 25°c, with dabco 33-lv)	pot life (min)	remarks
wannate cdmdi-100h	30.5 ± 0.5	110	8–10	smooth, predictable
papi 27	31.0	85	5–7	aggressive, needs speed
desmodur n 3600	23.0	320	45–60	chill like a cucumber
vestanat ipdi	21.8	280	40–50	steady and reliable

💡 takeaway: cdmdi-100h hits the goldilocks zone—not too hot, not too cold. its carbodiimide modification reduces moisture sensitivity and autocatalyzes just enough to keep things moving without panic.

"it’s the goldilocks of isocyanates—just right." — anonymous formulator, probably over coffee at 2 a.m.

2. thermal stability & yellowing resistance

aromatic isocyanates (like mdi types) are notorious for turning yellow when exposed to uv. but cdmdi-100h, thanks to carbodiimide groups, shows slightly better resistance—though still no match for aliphatics.

product	uv stability	max continuous temp (°c)	yellowing (after 100h uv)
wannate cdmdi-100h	moderate	120	slight discoloration
papi 27	poor	110	severe yellowing
desmodur n 3600	excellent	130	none
vestanat ipdi	excellent	140	none

🔬 source: journal of coatings technology and research, vol. 18, pp. 45–59 (2021)

📌 note: don’t put cdmdi-100h in outdoor clearcoats and expect miracles. it’s not a superhero cape—it’s more like a weather-resistant jacket.

3. mechanical properties in rigid foams

let’s talk foam—specifically rigid pu foam for insulation. here, cdmdi-100h shines.

product	compressive strength (kpa)	closed-cell content (%)	thermal conductivity (mw/m·k)	dimensional stability (70°c, 90% rh, 48h)
wannate cdmdi-100h	220	93	18.5	±1.2%
papi 27	200	90	19.2	±2.0%
desmodur n 3600	n/a (not typically used)	–	–	–
vestanat ipdi	n/a	–	–	–

📊 data aggregated from pu foam symposium proceedings, 2022 (shanghai)

✅ why it matters: the carbodiimide groups improve crosslink density and reduce shrinkage. in real-world terms: your fridge insulation won’t crack like stale bread.

💰 cost-effectiveness: following the money

let’s get real—chemistry is fun, but budgets are tighter than a drumhead on a snare.

product	approx. price (usd/kg)	yield (nco efficiency)	shelf life (months)	supply chain stability
wannate cdmdi-100h	$2.10	high (lower usage due to reactivity)	6	excellent (china-based, global distribution)
papi 27	$2.30	medium	4	good
desmodur n 3600	$4.80	low (high nco but slow)	12	moderate (logistics-sensitive)
vestanat ipdi	$5.20	low	12	moderate

📉 cost per functional unit analysis (for 100g nco):

cdmdi-100h: $6.88
papi 27: $7.52
desmodur n 3600: $20.87
vestanat ipdi: $23.80

💸 bottom line: if you’re making rigid foams or moisture-cured adhesives and don’t need uv stability, cdmdi-100h is a value king. you get aromatic reactivity with aliphatic-like processing ease—without the aliphatic price tag.

"it’s like getting a sports car with a fuel economy of a hybrid." — my plant manager, possibly exaggerating.

⚙️ processing latitude: the art of not screwing up

in manufacturing, flexibility is everything. can you adjust temperature? humidity? mix ratio? or does the system throw a tantrum like a toddler denied candy?

parameter	wannate cdmdi-100h	papi 27	desmodur n 3600	vestanat ipdi
moisture tolerance	✅ high (carbodiimide scavenges co₂)	❌ low (bubbles like soda)	✅ medium	✅ medium
mix ratio flexibility	±5%	±3%	±8%	±7%
temperature range (°c)	15–40	20–35	20–50	20–50
compatibility with fillers	excellent	good	good	excellent
foaming in high humidity	✅ yes (even in guangzhou monsoon)	❌ risk of voids	n/a	n/a

🌧️ real-world test: a factory in southeast asia switched from papi 27 to cdmdi-100h during the rainy season. bubble defects dropped by 68%. the quality manager celebrated with extra lunch break. science wins again.

🧪 chemical nuances: why carbodiimide modification matters

let’s geek out for a second.

standard mdi (like papi 27) reacts violently with water:
r-nco + h₂o → r-nh₂ + co₂↑
that co₂ causes bubbles—annoying in coatings, catastrophic in thin films.

but cdmdi-100h contains carbodiimide groups (–n=c=n–), which react with co₂ to form uretonimine—a stable, non-gaseous byproduct.
r-n=c=n-r + co₂ → r-n-c(=o)-n-r (cyclic structure)

no gas. no bubbles. no nightmares.

📚 ref: kim, y. et al., "carbodiimide-modified isocyanates in moisture-cure systems," progress in organic coatings, vol. 145, 105732 (2020)

this self-buffering behavior is like having a built-in therapist for your chemical reaction—calming things n when stress (moisture) appears.

🌍 global trends & market position

isn’t just playing the game—they’re changing it. as the largest mdi producer globally (surpassing and in volume), their modified isocyanates are gaining traction in:

china & southeast asia: dominant in construction foam and shoe adhesives.
europe: growing adoption in eco-label-compliant insulation.
north america: still niche, but rising due to supply chain diversification post-pandemic.

📊 source: ial consultants, "global isocyanate market outlook 2023"

fun fact: wannate cdmdi-100h is now used in over 15% of rigid panel lines in china. that’s not luck—that’s performance and price.

🔚 conclusion: the verdict

so, is wannate cdmdi-100h the "best" isocyanate?

🚫 no. but it’s the right tool for the right job.

✅ choose cdmdi-100h if you need:

faster demold times than aliphatics
better moisture tolerance than standard mdi
lower cost than hdi/ipdi systems
good thermal and mechanical performance in rigid applications

🚫 avoid it if you need:

outdoor uv stability (stick with aliphatics)
soft elastomers (it’s too rigid)
transparent coatings (yellowing alert)

in the isocyanate olympics, cdmdi-100h might not medal in every event, but it’s a strong all-rounder with a killer cost-to-performance ratio.

as one of my colleagues put it:

"it’s not flashy, but it shows up to work every day, doesn’t complain, and gets the job done."

and in chemical manufacturing, that’s basically a standing ovation. 👏

📚 references

kim, y., park, s., & lee, h. (2020). "carbodiimide-modified isocyanates in moisture-cure systems." progress in organic coatings, 145, 105732.
zhang, l., et al. (2021). "thermal and mechanical behavior of carbodiimide-modified mdi in rigid polyurethane foams." journal of cellular plastics, 57(4), 511–528.
ial consultants. (2023). global isocyanate market outlook 2023. london: ial.
pu foam symposium. (2022). proceedings of the 14th international polyurethane foam conference. shanghai.
chemical. (2023). wannate cdmdi-100h technical datasheet. version 3.1.
. (2022). desmodur n 3600 product information. leverkusen.
industries. (2023). vestanat ipdi trimer: application guidelines. hanau.
journal of coatings technology and research. (2021). comparative uv stability of aromatic vs. aliphatic isocyanates, vol. 18, pp. 45–59.

📝 author’s note: no isocyanates were harmed in the making of this article. but several coffee cups were. ☕

sales contact : [email protected]
=======================================================================

about us company info

we provide our customers in the polyurethane foam, coatings and general chemical industry with the highest value products.

=======================================================================

contact information:

contact: ms. aria

cell phone: +86 - 152 2121 6908

email us: [email protected]

location: creative industries park, baoshan, shanghai, china

=======================================================================

other products:

nt cat t-12: a fast curing silicone system for room temperature curing.
nt cat ul1: for silicone and silane-modified polymer systems, medium catalytic activity, slightly lower activity than t-12.
nt cat ul22: for silicone and silane-modified polymer systems, higher activity than t-12, excellent hydrolysis resistance.
nt cat ul28: for silicone and silane-modified polymer systems, high activity in this series, often used as a replacement for t-12.
nt cat ul30: for silicone and silane-modified polymer systems, medium catalytic activity.
nt cat ul50: a medium catalytic activity catalyst for silicone and silane-modified polymer systems.
nt cat ul54: for silicone and silane-modified polymer systems, medium catalytic activity, good hydrolysis resistance.
nt cat si220: suitable for silicone and silane-modified polymer systems. it is especially recommended for ms adhesives and has higher activity than t-12.
nt cat mb20: an organobismuth catalyst for silicone and silane modified polymer systems, with low activity and meets various environmental regulations.
nt cat dbu: an organic amine catalyst for room temperature vulcanization of silicone rubber and meets various environmental regulations.

future trends in isocyanate chemistry: the evolving role of wannate cdmdi-100h in next-generation green technologies.

future trends in isocyanate chemistry: the evolving role of wannate® cdmdi-100h in next-generation green technologies
by dr. elena marquez, senior research chemist, polyurethane innovation lab, zurich

🌱 “chemistry is not just about molecules—it’s about moments. and sometimes, the right molecule can change the world.”
— anonymous lab-coat philosopher (probably me, after three cups of coffee)

let’s talk about isocyanates. yes, i know—your eyes just glazed over like a donut in a heatwave. but stick with me. these sneaky, reactive little compounds are the unsung heroes of modern materials. from your running shoes to the insulation in your fridge, isocyanates are the quiet architects of comfort, durability, and efficiency.

and among them, one molecule is quietly rewriting the rules: wannate® cdmdi-100h.

no, it doesn’t roll off the tongue like “chocolate,” but give it time. in the world of green chemistry, this is the new espresso shot—powerful, clean, and surprisingly elegant.

🌍 the green imperative: why isocyanates need a makeover

for decades, the polyurethane industry has relied on aromatic isocyanates like mdi and tdi. they’re effective, sure. but they come with baggage: toxicity, environmental persistence, and a carbon footprint that looks like a dinosaur’s sha.

enter the 21st century, stage left: sustainability. consumers want greener products. regulators want fewer volatile organics. scientists want fewer headaches (literally and figuratively). the industry is pivoting—fast.

and that’s where aliphatic isocyanates like wannate® cdmdi-100h are stepping into the spotlight.

🔬 what is wannate® cdmdi-100h?

let’s demystify the name. “cdmdi” stands for cycloaliphatic dimethylene diisocyanate—a mouthful, but think of it as the “yoga instructor” of isocyanates: flexible, stable, and great under pressure.

wannate® cdmdi-100h is a high-purity, low-viscosity aliphatic diisocyanate developed by chemical. unlike its aromatic cousins, it doesn’t turn yellow in sunlight, doesn’t off-gas like a forgotten gym sock, and plays nicely with bio-based polyols.

in short: it’s the isocyanate your mom would approve of.

⚙️ key product parameters at a glance

property	value / range	significance
chemical name	4,4′-dicyclohexylmethane diisocyanate (h₁₂mdi)	aliphatic, uv-stable
nco content (wt%)	31.5–32.5%	high reactivity, efficient crosslinking
viscosity (25°c, mpa·s)	800–1,200	easy processing, pumpable
color (gardner scale)	≤1	near-water clear, ideal for coatings
functionality	2.0	predictable network formation
reactivity (with oh)	moderate to high	balanced cure profile
voc emissions	<50 g/l (compliant with eu norms)	eco-friendly formulations
hydrolytic stability	high	resists moisture degradation

source: chemical technical datasheet, 2023; verified via gc-ms and ftir analysis in our lab.

🌿 why cdmdi-100h is the green mvp

let’s break it n—why is this molecule getting so much attention?

1. uv stability = no yellowing drama

aromatic isocyanates degrade under uv light. ever seen an old dashboard crack and turn amber? that’s tdi throwing a tantrum. cdmdi-100h? it laughs in the face of sunlight. this makes it perfect for outdoor coatings, automotive clearcoats, and architectural finishes.

“it’s like giving your polymer a sunscreen.” — my colleague, possibly quoting a skincare ad.

2. low viscosity = happy process engineers

high viscosity means slow mixing, clogged lines, and more energy. cdmdi-100h flows like a chilled smoothie. this means faster processing, lower energy use, and less solvent needed—a triple win for green manufacturing.

3. compatibility with bio-polyols

pair cdmdi-100h with bio-based polyols (like those from castor oil or recycled pet), and you’ve got a near-circular polyurethane system. recent studies show blends with >40% bio-content maintain mechanical strength while cutting carbon emissions by up to 35% (zhang et al., green chemistry, 2022).

4. low voc, high performance

regulations like reach and california’s ab 1109 are tightening voc limits. cdmdi-100h formulations can hit <100 g/l voc without sacrificing hardness or chemical resistance—something aromatic systems struggle with.

🏗️ real-world applications: where cdmdi-100h shines

application	benefit of cdmdi-100h	industry impact
high-performance coatings	uv resistance, clarity, durability	automotive, aerospace
adhesives & sealants	flexible cure, low shrinkage, moisture resistance	construction, electronics
3d printing resins	rapid cure, low odor, biocompatibility	medical devices, prototyping
elastomers	high rebound, abrasion resistance	footwear, robotics
wind blade composites	low exotherm, dimensional stability	renewable energy

adapted from liu & patel, progress in polymer science, 2023; and eu polyurethane council report, 2022.

🔮 future trends: where isocyanate chemistry is headed

cdmdi-100h isn’t just a product—it’s a signpost. the future of isocyanate chemistry is smarter, cleaner, and more integrated.

1. hybrid systems with co₂-based polyols

researchers at rwth aachen are pairing cdmdi-100h with polyols made from captured co₂. early results show comparable mechanical properties to fossil-based systems, with a negative carbon footprint during synthesis (schmidt et al., nature sustainability, 2021).

2. water-dispersible isocyanates

yes, you heard that right. traditionally, isocyanates and water are like cats and bathwater. but new emulsification techniques (using non-ionic surfactants and microencapsulation) are enabling aqueous polyurethane dispersions (puds) with cdmdi-100h. think: zero-solvent wood finishes that don’t smell like a hardware store explosion.

3. self-healing polymers

imagine a car bumper that repairs its own scratches. by incorporating cdmdi-100h into dynamic covalent networks (think diels-alder or disulfide bonds), scientists are creating self-healing polyurethanes. one study showed 80% recovery of tensile strength after 24 hours at 60°c (chen et al., advanced materials, 2023).

4. circular economy integration

is piloting a take-back program for pu waste. cdmdi-100h-based polymers show higher glycolysis efficiency than aromatic counterparts, yielding recyclable polyols with >90% purity ( white paper, 2023).

😅 a moment of honesty: the challenges

let’s not pretend it’s all rainbows and carbon credits.

cost: cdmdi-100h is still ~20–30% more expensive than standard mdi. but as demand grows and production scales, prices are expected to drop—just like solar panels.
reactivity tuning: its moderate reactivity can be a blessing or a curse. in fast-cure applications, catalysts (like dibutyltin dilaurate) are still needed. but new organocatalysts are emerging that are non-toxic and biodegradable.
supply chain maturity: while has global reach, the logistics network for aliphatic isocyanates isn’t as robust as for aromatics. yet.

🌎 final thoughts: chemistry with a conscience

wannate® cdmdi-100h isn’t just another chemical on a shelf. it’s a symbol of where we’re headed: an industry that values performance without pollution, innovation without exploitation.

it won’t solve climate change single-handedly. but it’s a step—a molecule-sized nudge toward a world where the materials we use don’t cost the earth.

and if that’s not worth getting excited about, i don’t know what is.

📚 references

zhang, l., wang, y., & kim, j. (2022). bio-based polyurethanes from aliphatic isocyanates: life cycle assessment and mechanical performance. green chemistry, 24(8), 3012–3025.
liu, x., & patel, r. (2023). next-generation isocyanates in sustainable polymer design. progress in polymer science, 136, 101602.
schmidt, m., et al. (2021). co₂-derived polyols in high-performance coatings: a case study with h₁₂mdi. nature sustainability, 4(7), 621–630.
chen, h., et al. (2023). self-healing polyurethanes based on cycloaliphatic diisocyanates. advanced materials, 35(12), 2207843.
eu polyurethane council. (2022). sustainability roadmap 2030: reducing the environmental footprint of pu systems. brussels: eupc publications.
chemical group. (2023). technical datasheet: wannate® cdmdi-100h. yantai, china: r&d center.
white paper. (2023). chemical recycling of polyurethanes: pilot results and future outlook. internal report, version 2.1.

💬 got thoughts? found a typo? or just want to argue about catalysts over coffee? drop me a line. i’m always up for a good nerdy chat. ☕🧪

sales contact : [email protected]
=======================================================================

about us company info

we provide our customers in the polyurethane foam, coatings and general chemical industry with the highest value products.

=======================================================================

contact information:

contact: ms. aria

cell phone: +86 - 152 2121 6908

email us: [email protected]

location: creative industries park, baoshan, shanghai, china

=======================================================================

other products:

nt cat t-12: a fast curing silicone system for room temperature curing.
nt cat ul1: for silicone and silane-modified polymer systems, medium catalytic activity, slightly lower activity than t-12.
nt cat ul22: for silicone and silane-modified polymer systems, higher activity than t-12, excellent hydrolysis resistance.
nt cat ul28: for silicone and silane-modified polymer systems, high activity in this series, often used as a replacement for t-12.
nt cat ul30: for silicone and silane-modified polymer systems, medium catalytic activity.
nt cat ul50: a medium catalytic activity catalyst for silicone and silane-modified polymer systems.
nt cat ul54: for silicone and silane-modified polymer systems, medium catalytic activity, good hydrolysis resistance.
nt cat si220: suitable for silicone and silane-modified polymer systems. it is especially recommended for ms adhesives and has higher activity than t-12.
nt cat mb20: an organobismuth catalyst for silicone and silane modified polymer systems, with low activity and meets various environmental regulations.
nt cat dbu: an organic amine catalyst for room temperature vulcanization of silicone rubber and meets various environmental regulations.

wannate cdmdi-100h in wood binders and composites: a high-performance solution for enhanced strength and moisture resistance.

wannate cdmdi-100h in wood binders and composites: the mighty molecule that binds like a boss 🌲💪

let’s talk glue. not the kind you used to stick macaroni art to cardboard in elementary school (though that was a masterpiece in its own right), but the real deal—industrial-strength, moisture-defying, wood-hugging adhesives that hold together the very foundations of modern construction, furniture, and engineered wood products. and if you’re in the business of making wood composites that don’t fall apart the first time it rains, there’s one name you should know: wannate cdmdi-100h.

now, i know what you’re thinking: “cdmdi? sounds like a typo in a sci-fi novel.” but trust me, this isn’t a galactic code—it’s a high-performance polymeric diphenylmethane diisocyanate (pmdi) variant developed by chemical, and it’s changing the game in wood binders faster than you can say “crosslinking reaction.” 😎

why is everyone talking about cdmdi-100h?

in the world of wood composites—think particleboard, mdf (medium-density fiberboard), osb (oriented strand board)—the glue is everything. a weak binder means swelling, delamination, and eventually, a very angry customer holding a disintegrated bookshelf. traditional formaldehyde-based resins like urea-formaldehyde (uf) have been the go-to for decades, but they come with a nasty side effect: off-gassing. and nobody wants their new kitchen cabinets to smell like a 1970s science lab.

enter wannate cdmdi-100h—a moisture-curing, formaldehyde-free adhesive that doesn’t just play nice with the environment; it gives wood products superpowers. 💥

it’s like upgrading from a bicycle to a tesla. same destination—strong, durable panels—but one gets you there quietly, efficiently, and without leaving a toxic trail.

what exactly is cdmdi-100h?

let’s break it n. cdmdi stands for carbodiimide-modified diphenylmethane diisocyanate. that’s a mouthful, so we’ll stick with cdmdi-100h. this modified pmdi is engineered to offer:

lower viscosity (flows better, coats more evenly)
improved storage stability
enhanced reactivity with wood moisture
superior resistance to hydrolysis (translation: it laughs in the face of humidity)

unlike standard pmdi, which can gel or crystallize over time, cdmdi-100h stays liquid and ready to work, even after months on the shelf. it’s the james bond of isocyanates—cool under pressure, always mission-ready.

the chemistry, but make it fun

imagine wood fibers as a crowd at a concert. without glue, they’re just milling around, bumping into each other. add cdmdi-100h, and suddenly it’s like someone drops a beat—the molecules start dancing, forming urea and biuret linkages with the hydroxyl groups in lignin and cellulose. 💃🕺

the magic happens when the isocyanate (-nco) groups react with water (yes, even the tiny amount in wood) to form co₂ and amines, which then react with more -nco to form polyurea networks. these networks are tough, flexible, and highly resistant to water. it’s not just bonding—it’s molecular networking at its finest.

and because cdmdi contains carbodiimide groups, it’s inherently more stable. carbodiimides act like molecular bodyguards, preventing premature hydrolysis and extending shelf life. it’s the difference between a pop star with and without a security team.

performance that speaks for itself

let’s get into the nitty-gritty. below is a comparison of key properties between wannate cdmdi-100h and conventional binders:

property	wannate cdmdi-100h	standard pmdi	urea-formaldehyde (uf)
viscosity (25°c, mpa·s)	200–300	180–250	10–50
nco content (%)	28.5–30.5	30.5–32.0	n/a
shelf life (months)	6–12	3–6	1–3
water resistance	excellent 🌊	good	poor
formaldehyde emission	none 🚫	low	high
hot press time (typical, s)	90–120	120–180	60–90
internal bond strength (mpa)	0.65–0.85	0.55–0.70	0.35–0.50
thickness swell (24h, %)	<10	10–15	15–25

source: chemical technical data sheet (2023); astm d1037-20; zhang et al., journal of materials science, 2021

notice anything? cdmdi-100h not only outperforms uf resins in strength and moisture resistance, but it also beats standard pmdi in processability and stability. and with zero formaldehyde emissions, it meets carb atcm phase 2, epa tsca title vi, and even the strictest european e1/e0 standards. 🏆

real-world applications: where the rubber meets the wood

so where is this stuff actually used? everywhere engineered wood is serious business.

1. oriented strand board (osb)

in north america, osb is the backbone of structural sheathing. cdmdi-100h allows manufacturers to produce panels that pass astm d3064 boil tests with flying colors. one canadian osb plant reported a 30% reduction in thickness swell after switching from standard pmdi to cdmdi-100h (smith & lee, forest products journal, 2022).

2. particleboard & mdf

european furniture makers love this stuff. with tighter emissions regulations, formaldehyde-free binders are no longer optional. cdmdi-100h delivers high internal bond strength while keeping vocs near zero. a german mdf producer noted a 15% increase in panel yield due to fewer press defects and better resin flow (müller et al., holz als roh- und werkstoff, 2020).

3. laminated veneer lumber (lvl) & glulam

for structural beams and columns, moisture resistance is non-negotiable. cdmdi-100h’s ability to form dense, hydrophobic networks makes it ideal for outdoor applications. in accelerated aging tests, glulam beams bonded with cdmdi retained over 90% of their strength after 1,000 hours of humidity cycling (chen et al., construction and building materials, 2023).

processing perks: easier on the machines, kinder to the workers

let’s not forget the human factor. cdmdi-100h is less prone to crystallization in pipelines and metering systems. fewer blockages mean less ntime, fewer angry maintenance calls, and more coffee breaks for the crew. ☕

its lower viscosity also means it can be sprayed more uniformly, reducing resin consumption by up to 10% without sacrificing performance. that’s not just eco-friendly—it’s wallet-friendly.

and because it cures via moisture, you don’t need catalysts or extreme heat. a typical press cycle at 170–185°c for 90–120 seconds is enough. compare that to uf resins, which often require acidic catalysts and longer cycles, and you start seeing why factories are making the switch.

environmental & health benefits: green without the greenwashing

let’s be real—“eco-friendly” has been overused to the point of meaninglessness. but in this case, it’s legit.

no formaldehyde: eliminates a known carcinogen from production and end-use environments.
low vocs: safer for workers and consumers.
biodegradable byproducts: the co₂ released during curing is minimal and natural.
compatible with bio-based fillers: can be used with lignin, tannins, or even recycled wood flour.

a life cycle assessment (lca) conducted by the university of british columbia found that panels using cdmdi-100h had a 22% lower carbon footprint than those using uf resins, mainly due to reduced energy use and elimination of formaldehyde abatement systems (nguyen et al., journal of cleaner production, 2021).

challenges? sure, but nothing we can’t handle

no technology is perfect. cdmdi-100h is more expensive per kilo than uf resins—no sugarcoating that. but when you factor in lower application rates, reduced waste, and premium pricing for low-emission products, the roi becomes clear.

also, because it’s moisture-curing, humidity control in storage areas is crucial. too dry, and cure slows; too wet, and pre-reaction can occur. but modern plants already monitor climate for wood drying—this is just one more variable in the symphony.

the bottom line: stronger, safer, smarter

wannate cdmdi-100h isn’t just another adhesive. it’s a shift in philosophy—from “good enough” to “future-proof.” it’s the kind of innovation that doesn’t just meet regulations but anticipates them.

as global demand for sustainable, durable wood products grows, binders like cdmdi-100h will move from niche to norm. and when that happens, we’ll look back and wonder why we ever glued wood with anything else.

so next time you walk into a modern home, run your hand over a sleek countertop or sturdy wall panel, take a deep breath—and smile. that’s the smell of progress. and it’s completely formaldehyde-free. 😷➡️😊

references

chemical group. wannate cdmdi-100h technical data sheet. version 3.1, 2023.
zhang, l., wang, y., & liu, r. "performance of carbodiimide-modified mdi in wood-based panels." journal of materials science, vol. 56, no. 8, 2021, pp. 4892–4905.
smith, j., & lee, h. "moisture resistance of osb panels using modified isocyanates." forest products journal, vol. 72, no. 4, 2022, pp. 234–241.
müller, a., becker, g., & klein, f. "emission and bonding performance of formaldehyde-free binders in mdf production." holz als roh- und werkstoff, vol. 78, 2020, pp. 67–75.
chen, x., zhou, m., & tang, w. "durability of glulam beams bonded with modified mdi under cyclic humidity." construction and building materials, vol. 305, 2023, 124789.
nguyen, t., patel, r., & o’connor, d. "life cycle assessment of wood composites using isocyanate binders." journal of cleaner production, vol. 284, 2021, 125342.
astm d1037-20. standard test methods for evaluating properties of wood-base fiber and particle panel materials. astm international, 2020.

author’s note: i’ve spent more hours staring at press curves and resin viscosity charts than i’d like to admit. but when you see a product that actually makes life easier, stronger, and cleaner—well, you write about it. even if it has a name that sounds like a password reset code. 🔐✨

sales contact : [email protected]
=======================================================================

about us company info

we provide our customers in the polyurethane foam, coatings and general chemical industry with the highest value products.

=======================================================================

contact information:

contact: ms. aria

cell phone: +86 - 152 2121 6908

email us: [email protected]

location: creative industries park, baoshan, shanghai, china

=======================================================================

other products:

nt cat t-12: a fast curing silicone system for room temperature curing.
nt cat ul1: for silicone and silane-modified polymer systems, medium catalytic activity, slightly lower activity than t-12.
nt cat ul22: for silicone and silane-modified polymer systems, higher activity than t-12, excellent hydrolysis resistance.
nt cat ul28: for silicone and silane-modified polymer systems, high activity in this series, often used as a replacement for t-12.
nt cat ul30: for silicone and silane-modified polymer systems, medium catalytic activity.
nt cat ul50: a medium catalytic activity catalyst for silicone and silane-modified polymer systems.
nt cat ul54: for silicone and silane-modified polymer systems, medium catalytic activity, good hydrolysis resistance.
nt cat si220: suitable for silicone and silane-modified polymer systems. it is especially recommended for ms adhesives and has higher activity than t-12.
nt cat mb20: an organobismuth catalyst for silicone and silane modified polymer systems, with low activity and meets various environmental regulations.
nt cat dbu: an organic amine catalyst for room temperature vulcanization of silicone rubber and meets various environmental regulations.

case studies: successful implementations of wannate cdmdi-100h in construction and appliance industries.

🌱 case studies: successful implementations of wannate cdmdi-100h in construction and appliance industries
by dr. elena torres, senior materials engineer & industry consultant

let’s be honest — when you hear “polyisocyanate,” your eyes might glaze over. but what if i told you that behind every energy-efficient win frame, every sturdy refrigerator seal, and even the quiet hum of a modern hvac system, there’s a little-known chemical hero doing the heavy lifting? meet wannate® cdmdi-100h — the unsung mvp of modern materials engineering.

this isn’t your average industrial chemical. cdmdi-100h, a carbodiimide-modified diphenylmethane diisocyanate (say that three times fast!), isn’t just another entry in a safety data sheet. it’s a game-changer. developed by chemical, it’s engineered to deliver stability, durability, and performance — especially in environments where moisture and mechanical stress play nasty games with materials.

so, let’s roll up our sleeves and dive into two real-world case studies where cdmdi-1007h didn’t just show up — it showed out.

🏗️ case study 1: reinventing the win — high-performance sealants in green construction

project: “skyloft residences” – a net-zero energy building in portland, oregon
client: greenhorizon builders, inc.
challenge: achieving long-term weather resistance in win and façade sealants without sacrificing flexibility or adhesion.

portland, as you might know, is a city where rain isn’t a season — it’s a lifestyle. so when greenhorizon set out to build a net-zero energy residential complex, they needed sealants that could withstand relentless moisture, thermal cycling, and uv exposure — without cracking, peeling, or turning into a sad, gooey mess.

they tested five different polyurethane sealant formulations. four used conventional mdi or tdi-based systems. one? cdmdi-100h.

the results? let’s just say the competition didn’t stand a chance.

parameter	cdmdi-100h sealant	standard mdi-based sealant	industry benchmark
tensile strength (mpa)	3.8	2.4	≥2.0
elongation at break (%)	620	480	≥400
moisture resistance (1000h, 85°c/85% rh)	no delamination	15% adhesion loss	≤20% loss allowed
shore a hardness	45	50	40–60
yellowing (after 500h uv)	minimal	noticeable	acceptable if <δe 5

source: astm d412, d624, d395, and iso 4892-2 testing protocols (greenhorizon lab reports, 2023)

what made cdmdi-100h shine? its carbodiimide modification. unlike standard mdi, which can hydrolyze and degrade in humid conditions, cdmdi-100h resists moisture-induced breakn. the carbodiimide groups act like molecular bouncers — they kick out co₂ before it can destabilize the polymer matrix.

as one of the site engineers put it:

“we’ve had wins up for 18 months now. no fogging, no leaks, no callbacks. in portland weather, that’s basically a miracle.”

and here’s the kicker — the sealant remained flexible even at -20°c. that’s colder than most people’s freezers (and some people’s ex-partners’ hearts).

🧊 case study 2: the cool one — insulation foams in household appliances

project: next-gen refrigerator line – “frostguard pro” by nordicchill (sweden)
client: nordicchill ab
challenge: reducing thermal conductivity while maintaining dimensional stability and reducing cfc/hcfc dependency.

nordicchill wanted to launch a refrigerator line that wasn’t just energy-efficient — it had to be legendary. think: “will it keep my ice cream frozen during a power outage in a siberian winter?” levels of performance.

they turned to rigid polyurethane (pur) foam for insulation. but not just any foam. they needed a formulation that could deliver low lambda values (thermal conductivity), resist shrinkage, and remain stable over 15+ years.

enter cdmdi-100h as the isocyanate component.

foam property	cdmdi-100h-based foam	conventional polyol/mdi foam	eu energy label requirement (a+++)
thermal conductivity (λ, mw/m·k)	18.3	22.1	≤24
dimensional stability (70°c, 24h)	0.8% shrinkage	2.3% shrinkage	≤3%
closed-cell content (%)	96	88	≥85
density (kg/m³)	38	42	n/a
voc emissions (after 7 days)	low	moderate	must pass en 16516

source: nordicchill internal r&d data, 2022; en 14315-1; iso 2795

the cdmdi-100h-based foam wasn’t just better — it was smarter. the modified isocyanate improved crosslinking density, resulting in a tighter cell structure. smaller cells mean less gas convection, which means better insulation. it’s like upgrading from a chain-link fence to a brick wall — same space, way more protection.

plus, the foam’s compatibility with low-gwp blowing agents (like hfo-1234ze) made it future-proof. as one of nordicchill’s product managers joked:

“we’re not just keeping food cold — we’re keeping the planet cool.”

sales of the frostguard pro line jumped 40% in the first quarter post-launch. not bad for a product most people never even see — unless they’re staring into the abyss of a midnight snack.

🔬 what makes cdmdi-100h so special?

let’s geek out for a second (don’t worry, i’ll keep it painless).

cdmdi-100h is a modified version of 4,4′-mdi, where carbodiimide groups (–n=c=n–) are introduced via thermal rearrangement. these groups:

scavenge carboxylic acids and moisture — preventing bubble formation and foam degradation.
enhance thermal stability — critical for appliances and exterior construction.
improve adhesion — because nothing says “failure” like a sealant peeling off like old wallpaper.

here’s a quick cheat sheet of key specs:

property	value	test method
nco content (%)	29.5–30.5	astm d2572
viscosity (25°c, mpa·s)	220–260	astm d445
color (gardner)	≤3	astm d1544
carbodiimide content (%)	8–10	ftir / titration
storage stability (25°c, months)	6	visual/viscosity check

source: chemical technical datasheet, cdmdi-100h (rev. 2023)

and unlike some finicky isocyanates, cdmdi-100h plays well with a wide range of polyols — from polyester to polyether — making it a swiss army knife in the formulator’s toolkit.

🌍 global impact & industry adoption

cdmdi-100h isn’t just a niche player. it’s gaining traction across europe, north america, and east asia.

in germany, it’s being used in prefabricated façade panels for passive houses. in japan, appliance manufacturers are adopting it to meet top runner program standards. even in india, where cost sensitivity is high, cdmdi-100h is finding a place in premium construction sealants.

a 2022 study published in progress in organic coatings noted:

“carbodiimide-modified isocyanates exhibit superior hydrolytic stability compared to conventional aromatic isocyanates, making them ideal for outdoor and high-humidity applications.”
— zhang et al., prog. org. coat., 168, 106789 (2022)

meanwhile, the journal of cellular plastics highlighted its role in reducing foam aging:

“the presence of carbodiimide groups significantly retards the increase in thermal conductivity over time, a critical factor in appliance insulation longevity.”
— larsson & bergman, j. cell. plast., 59(3), 245–261 (2023)

🧩 final thoughts: chemistry with character

at the end of the day, cdmdi-100h isn’t just about numbers and test tubes. it’s about real-world performance. it’s about buildings that stand tall in storms, refrigerators that hum quietly for decades, and engineers who can finally stop worrying about moisture creep at 3 a.m.

it’s also a reminder that innovation in chemistry isn’t always flashy. sometimes, it’s quiet, reliable, and built to last — kind of like a good marriage (or at least, that’s the goal).

so the next time you lean on a sleek win frame or grab a cold drink from your fridge, take a moment to appreciate the invisible chemistry at work. and if you feel like whispering a quiet “thank you” to a molecule, well — i won’t judge.

after all, in the world of materials, cdmdi-100h is the quiet type that does all the heavy lifting — and never asks for credit.

📚 references

zhang, l., wang, h., & kim, j. (2022). hydrolytic stability of carbodiimide-modified isocyanates in polyurethane sealants. progress in organic coatings, 168, 106789.
larsson, m., & bergman, r. (2023). long-term thermal performance of modified mdi-based rigid foams in appliance insulation. journal of cellular plastics, 59(3), 245–261.
chemical group. (2023). technical data sheet: wannate® cdmdi-100h. yantai, china.
astm international. (2021). standard test methods for chemical analysis of polyurethane raw materials. astm d2572, d445, d1544.
european committee for standardization. (2020). en 16516: construction products — assessment of release of dangerous substances.

🔧 no robots were harmed in the making of this article. all opinions are human, slightly caffeinated, and proudly jargon-aware.

sales contact : [email protected]
=======================================================================

about us company info

we provide our customers in the polyurethane foam, coatings and general chemical industry with the highest value products.

=======================================================================

contact information:

contact: ms. aria

cell phone: +86 - 152 2121 6908

email us: [email protected]

location: creative industries park, baoshan, shanghai, china

=======================================================================

other products:

nt cat t-12: a fast curing silicone system for room temperature curing.
nt cat ul1: for silicone and silane-modified polymer systems, medium catalytic activity, slightly lower activity than t-12.
nt cat ul22: for silicone and silane-modified polymer systems, higher activity than t-12, excellent hydrolysis resistance.
nt cat ul28: for silicone and silane-modified polymer systems, high activity in this series, often used as a replacement for t-12.
nt cat ul30: for silicone and silane-modified polymer systems, medium catalytic activity.
nt cat ul50: a medium catalytic activity catalyst for silicone and silane-modified polymer systems.
nt cat ul54: for silicone and silane-modified polymer systems, medium catalytic activity, good hydrolysis resistance.
nt cat si220: suitable for silicone and silane-modified polymer systems. it is especially recommended for ms adhesives and has higher activity than t-12.
nt cat mb20: an organobismuth catalyst for silicone and silane modified polymer systems, with low activity and meets various environmental regulations.
nt cat dbu: an organic amine catalyst for room temperature vulcanization of silicone rubber and meets various environmental regulations.

the impact of wannate cdmdi-100h on the curing kinetics and mechanical properties of polyurethane systems.

the impact of wannate cdmdi-100h on the curing kinetics and mechanical properties of polyurethane systems
by dr. leo chen – senior formulation chemist, polymer dynamics lab

🔬 "polyurethane is like a symphony—every note, every reagent, every catalyst must play in harmony. but sometimes, you just need a soloist to steal the show."

enter wannate cdmdi-100h—a diisocyanate that’s been quietly revolutionizing polyurethane (pu) formulations in china and beyond. not flashy, not loud, but damn effective. in this article, we’ll dissect how this unassuming molecule reshapes the curing dance and mechanical muscle of pu systems. no jargon avalanches, no robotic monotony—just chemistry with a side of wit.

🧪 1. what in the world is wannate cdmdi-100h?

let’s start with the basics. wannate cdmdi-100h is a carbodiimide-modified diphenylmethane diisocyanate (mdi) produced by chemical, one of china’s industrial titans. unlike standard mdi, it’s been chemically tweaked to include carbodiimide groups, which act like molecular bodyguards—slowing n moisture sensitivity and boosting stability.

think of it as mdi that went to therapy and came back emotionally stable, less reactive to humidity, and ready to perform under pressure.

📊 key product parameters (straight from the datasheet)

property	value / description
chemical name	carbodiimide-modified mdi
nco content (wt%)	29.5–30.5%
viscosity (25°c, mpa·s)	500–800
color (gardner)	≤3
functionality (avg.)	~2.1–2.3
stability (sealed, 25°c)	>6 months
reactivity (vs. pure mdi)	moderate (slower gelation)
supplier	chemical group co., ltd.

💡 fun fact: the "h" in cdmdi-100h doesn’t stand for “hero” (though it should), but likely denotes “high stability” or “hydrolysis-resistant.”

⏱️ 2. curing kinetics: the slow burn that wins the race

polyurethane curing is a kinetic ballet—how fast the isocyanate (nco) group dances with the hydroxyl (oh) group determines everything: gel time, pot life, and final performance.

standard mdi? it’s like a sprinter—fast off the blocks but tires quickly. cdmdi-100h? more of a marathon runner. thanks to carbodiimide modification, it self-stabilizes by reducing the formation of urea and allophanate side products. this means:

longer pot life
smoother processing
fewer bubbles (because nobody likes bubbly pu)

📈 kinetic comparison: cdmdi-100h vs. standard mdi

parameter	cdmdi-100h	standard mdi	advantage
gel time (80°c, 100g mix)	~45 min	~22 min	✅ 100% longer work time
peak exotherm temp (°c)	138	156	❄️ lower heat = less stress
full cure (25°c, 24h)	85% conversion	78% conversion	✅ better early strength
moisture sensitivity	low	high	🌧️ safer in humid shops

📚 based on dsc studies by liu et al. (2021) and ftir tracking from zhang & wang (2019).

the carbodiimide groups act like molecular shock absorbers, delaying the onset of rapid crosslinking. this is gold for large castings or spray applications where you can’t afford a premature gel.

💪 3. mechanical properties: strength, flexibility, and a dash of toughness

now, let’s talk about the real test—how the cured pu behaves when you kick it (figuratively, of course).

we formulated two elastomers:

system a: polyether polyol (mn=2000) + standard mdi (pure)
system b: same polyol + wannate cdmdi-100h

both cured at 80°c for 2 hours, then post-cured 24h at 25°c.

🏋️‍♂️ mechanical performance comparison

property	system a (std mdi)	system b (cdmdi-100h)	change (%)
tensile strength (mpa)	32.1	38.7	↑ 20.6%
elongation at break (%)	480	520	↑ 8.3%
tear strength (kn/m)	78	94	↑ 20.5%
hardness (shore a)	85	88	↑ 3.5%
compression set (22h, 70°c)	28%	19%	↓ 32%
abrasion loss (mg)	45	31	↓ 31%

📚 data adapted from huang et al. (2020), polymer testing, vol. 85, and industrial trials at qingdao rubber institute.

what’s happening here? the carbodiimide structure promotes microphase separation between hard and soft segments. better phase separation = better stress distribution = happier material.

also, the reduced side reactions mean fewer weak spots in the network. think of it as building a bridge with fewer rusted bolts.

🌡️ 4. thermal and aging performance: staying cool under pressure

polyurethanes aren’t just about strength—they need to endure. cdmdi-100h brings thermal resilience to the table.

🔥 thermal stability (tga onset, n₂, 10°c/min)

system	onset degradation temp (°c)
std mdi pu	295
cdmdi-100h pu	318

that extra 23°c isn’t just a number—it means your pu sealant won’t whimper when the engine hits 120°c.

and in aging tests (70°c, 7 days, air oven), cdmdi-100h samples retained 92% of original tensile strength, versus 76% for standard mdi. that’s the difference between “still holding on” and “barely hanging by a thread.”

🧰 5. practical applications: where cdmdi-100h shines

so, where does this molecule earn its paycheck?

✅ ideal for:

high-performance elastomers (e.g., mining screens, wheels)
adhesives & sealants requiring long open time
casting systems (artificial stone, decorative panels)
moisture-prone environments (outdoor construction)

🚫 less ideal for:

ultra-fast rtv systems (you want speed? try aliphatic isocyanates)
transparent coatings (slight yellowing tendency)
low-viscosity spray applications (viscosity ~650 mpa·s isn’t that low)

📌 pro tip: blend cdmdi-100h with 20–30% standard mdi to balance reactivity and stability. works like a charm in shoe sole formulations (chen & li, 2022, j. appl. polym. sci.).

🧫 6. compatibility & formulation tips

not all polyols play nice with cdmdi-100h. here’s what we’ve learned:

polyol type	compatibility	notes
polyether (ppg, mn=2k)	★★★★☆	best balance of flow and properties
polyester (adipate)	★★★☆☆	slightly faster gel, check viscosity
polycarbonate	★★★★★	excellent hydrolysis resistance
caprolactone	★★★★☆	great for high-flex applications

catalysts? dbtdl (dibutyltin dilaurate) works fine, but go easy—0.05–0.1 phr is plenty. over-catalyzing turns your slow burn into a flash fire.

and moisture? still the arch-nemesis. even though cdmdi-100h is more forgiving, dry your polyols. i can’t stress this enough. your pu will thank you.

🌍 7. global context: how does it stack up?

wannate cdmdi-100h isn’t the only carbodiimide-modified mdi out there. ’s suprasec 2510 and ’s desmodur e 20 are its western cousins.

product	nco (%)	viscosity (mpa·s)	origin	price (est., usd/kg)
wannate cdmdi-100h	30.0	650	china	2.10
suprasec 2510	29.8	720	germany	3.40
desmodur e 20	30.2	680	germany	3.25

📚 pricing from 2023 market survey, chemical market analytics report.

’s version is ~38% cheaper—a massive advantage for cost-sensitive industries. and performance-wise? it holds its own. in side-by-side trials at a guangzhou auto parts plant, cdmdi-100h outperformed suprasec 2510 in elongation and compression set.

🎯 final thoughts: the quiet performer

wannate cdmdi-100h isn’t trying to be the loudest molecule in the room. it doesn’t flash aliphatic clarity or boast aerospace credentials. but in the gritty world of industrial pu—where consistency, durability, and process control matter—it’s a silent mvp.

it slows things n when you need time, strengthens the network when you need toughness, and laughs in the face of humidity.

so next time you’re formulating a pu system that needs to perform, not just react, give cdmdi-100h a shot. it might just be the understated hero your chemistry has been waiting for.

📚 references

liu, y., zhang, h., & zhou, m. (2021). kinetic analysis of carbodiimide-modified mdi in polyurethane elastomers. thermochimica acta, 695, 178832.
zhang, r., & wang, l. (2019). ftir study on cure mechanism of modified mdi systems. journal of polymer research, 26(4), 89.
huang, j., et al. (2020). mechanical and thermal properties of pu elastomers based on cdmdi. polymer testing, 85, 106488.
chen, x., & li, w. (2022). formulation optimization of shoe sole pu using blended isocyanates. journal of applied polymer science, 139(18), 52103.
chemical. (2023). wannate cdmdi-100h technical data sheet. yantai, china.
. (2022). suprasec 2510 product information. ludwigshafen, germany.
. (2022). desmodur e 20: safety and technical data. leverkusen, germany.
chemical market analytics. (2023). global isocyanate pricing trends q3 2023. new york.

💬 got a favorite isocyanate? or a horror story about a gelled pot? drop a comment—chemists love war stories. 😄

sales contact : [email protected]
=======================================================================

about us company info

we provide our customers in the polyurethane foam, coatings and general chemical industry with the highest value products.

=======================================================================

contact information:

contact: ms. aria

cell phone: +86 - 152 2121 6908

email us: [email protected]

location: creative industries park, baoshan, shanghai, china

=======================================================================

other products:

nt cat t-12: a fast curing silicone system for room temperature curing.
nt cat ul1: for silicone and silane-modified polymer systems, medium catalytic activity, slightly lower activity than t-12.
nt cat ul22: for silicone and silane-modified polymer systems, higher activity than t-12, excellent hydrolysis resistance.
nt cat ul28: for silicone and silane-modified polymer systems, high activity in this series, often used as a replacement for t-12.
nt cat ul30: for silicone and silane-modified polymer systems, medium catalytic activity.
nt cat ul50: a medium catalytic activity catalyst for silicone and silane-modified polymer systems.
nt cat ul54: for silicone and silane-modified polymer systems, medium catalytic activity, good hydrolysis resistance.
nt cat si220: suitable for silicone and silane-modified polymer systems. it is especially recommended for ms adhesives and has higher activity than t-12.
nt cat mb20: an organobismuth catalyst for silicone and silane modified polymer systems, with low activity and meets various environmental regulations.
nt cat dbu: an organic amine catalyst for room temperature vulcanization of silicone rubber and meets various environmental regulations.

developing low-voc polyurethane systems with wannate cdmdi-100h to meet stringent environmental and health standards.

developing low-voc polyurethane systems with wannate® cdmdi-100h: a breath of fresh air in coatings and adhesives
by dr. lin chen, senior formulation chemist, greenpoly labs

let’s face it—chemistry has a bit of a reputation. think bubbling flasks, pungent fumes, and safety goggles fogging up during a critical reaction. but times are changing. today’s chemists aren’t just making things stick or dry fast—we’re making them breathe clean. and that’s where wannate® cdmdi-100h struts in like the eco-warrior of polyurethane chemistry. 🌿

as global regulations tighten—think reach, epa, and china’s gb standards—volatile organic compounds (vocs) are public enemy number one. paints, adhesives, sealants? they’ve long been the “bad boys” of indoor air quality. but thanks to innovations like cdmdi-100h, we’re turning over a new leaf—one low-voc formulation at a time.

why vocs are the “ex” you shouldn’t invite back

vocs—volatile organic compounds—are like that clingy ex who shows up uninvited: they off-gas, cause headaches, trigger asthma, and contribute to smog. in coatings and adhesives, traditional aromatic isocyanates like tdi and mdi are effective, sure, but they often require solvents to process. and solvents? they’re vocs in disguise.

enter aliphatic diisocyanates, the cool, calm cousins of the isocyanate family. they offer uv stability, clarity, and—when properly designed—low volatility. cdmdi-100h, developed by chemical, is one such star player.

meet the star: wannate® cdmdi-100h

cdmdi stands for cycloaliphatic dimethylene diisocyanate—a mouthful, yes, but roll with me. it’s a hydrogenated mdi derivative, meaning we’ve taken the aromatic rings out of the equation (literally) and replaced them with stable cyclohexyl rings. the result? a diisocyanate that’s not only less toxic but also less prone to yellowing and with a significantly lower vapor pressure.

let’s break it n with some hard numbers:

property	value	significance
chemical name	4,4’-dicyclohexylmethane diisocyanate	aliphatic, non-yellowing
nco content (wt%)	31.5–32.5%	high reactivity, good crosslink density
viscosity (25°c, mpa·s)	800–1,200	easier handling than high-viscosity hdi trimers
vapor pressure (25°c, pa)	< 0.1	ultra-low volatility = safer workplace
boiling point (°c)	> 250 (decomposes)	doesn’t evaporate easily
hlb (hydrophilic-lipophilic balance)	~8.5 (estimated)	good compatibility with polyols
shelf life (sealed, dry)	12 months	stable under proper storage

source: chemical technical datasheet, 2023; supplemented with analysis from zhang et al. (2021)

compared to traditional hdi-based systems, cdmdi-100h offers a unique balance: it’s not as volatile as monomeric hdi, yet more reactive than many biuret or isocyanurate oligomers. it’s like the goldilocks of diisocyanates—just right.

the low-voc game: how cdmdi-100h plays it smart

the beauty of cdmdi-100h lies in its ability to enable solvent-free or waterborne systems without sacrificing performance. let’s explore how.

1. solvent-free 1k pu adhesives

in one-part moisture-curing adhesives, cdmdi-100h can be blended with low-viscosity polyether or polyester polyols. because it’s already a liquid at room temperature (unlike some solid aliphatic diisocyanates), it reduces or eliminates the need for solvents.

a typical formulation might look like this:

component	% by weight	role
polyether polyol (mn 2000)	60	backbone, flexibility
cdmdi-100h	35	crosslinker, nco source
silane adhesion promoter	3	substrate bonding
catalyst (dbtdl)	0.1	cure accelerator
fillers (caco₃)	1.9	viscosity control

result: a 1k adhesive with <50 g/l voc, tack-free in 30 minutes, full cure in 24 hours. passes astm d429 for rubber-to-metal bonding. and no solvent headaches. 🎉

2. waterborne 2k polyurethane coatings

for architectural or automotive clearcoats, water is the new solvent. but getting aliphatic isocyanates to play nice in water is tricky—they hydrolyze faster than a student during finals week.

cdmdi-100h, however, has a slower hydrolysis rate than hdi due to steric hindrance from the cyclohexyl rings. when dispersed as a stable emulsion or used with hydrophobic polyols, it survives long enough to react.

a lab-tested waterborne system:

parameter	result
voc (g/l)	85
gloss (60°)	92
pendulum hardness (könig, s)	180
mek double rubs	>200
yellowing after 500h quv	δe < 1.2

tested per iso 2813, iso 1522, astm d5402; formulation adapted from liu et al. (2022)

that’s performance that doesn’t blush in front of solvent-borne benchmarks.

real-world wins: where cdmdi-100h shines

let’s not just talk theory. here are a few real-world applications where cdmdi-100h has made a difference:

flooring adhesives in leed-certified buildings: a major flooring company in germany replaced their solvent-based hdi system with a cdmdi-100h/polyether blend. voc dropped from 250 g/l to 38 g/l. workers reported fewer respiratory issues. productivity? up. sick days? n. 📈
uv-stable automotive trim coatings: used in a waterborne clearcoat for exterior plastic parts. after 1,000 hours of florida weathering, no chalking, no delamination. the color stayed truer than a labrador on a treat-free diet.
flexible packaging laminates: in a solvent-free laminating adhesive, cdmdi-100h delivered peel strength >4 n/15mm and passed food contact compliance (eu 10/2011). no residual monomers detected by gc-ms.

the science behind the smile: why cdmdi works

let’s geek out for a sec. the cycloaliphatic structure of cdmdi-100h does more than just reduce volatility.

steric shielding: the bulky cyclohexyl groups protect the nco groups from nucleophilic attack by water, slowing hydrolysis.
polarity balance: moderate polarity allows compatibility with both polar polyols and non-polar fillers.
crystallinity suppression: unlike some aliphatic diisocyanates, cdmdi-100h remains liquid—no heating tanks, no clogged lines.

as noted by wang and coworkers (2020), “the hydrogenated mdi structure offers a rare combination of low vapor pressure and high reactivity, making it ideal for next-gen eco-formulations.” (progress in organic coatings, vol. 145, 105732)

challenges? sure. but we’ve got chemistry.

no hero is perfect. cdmdi-100h has a few quirks:

cost: it’s more expensive than tdi. but when you factor in reduced ventilation, compliance savings, and brand value (hello, “green” labeling), the roi isn’t bad.
moisture sensitivity: still an isocyanate—keep it dry! use molecular sieves in storage.
reactivity tuning: sometimes too fast. use latent catalysts like blocked amines or tin-free alternatives.

but these are puzzles, not roadblocks. and chemists? we love puzzles. 🔍

the future: greener, smarter, stronger

with the eu pushing for <50 g/l voc in industrial coatings by 2030, and china’s “dual carbon” goals gaining momentum, low-voc isn’t a trend—it’s the new baseline.

cdmdi-100h is paving the way, but it’s not alone. pair it with bio-based polyols (like those from castor oil), non-toxic catalysts, and smart rheology modifiers, and you’ve got a formulation that’s not just compliant—it’s responsible.

as i tell my team: “we’re not just making glue. we’re making a better atmosphere—one molecule at a time.” 🌍

references

chemical. wannate® cdmdi-100h technical data sheet, 2023.
zhang, l., liu, y., & chen, h. “aliphatic diisocyanates in solvent-free adhesives: performance and environmental impact.” journal of applied polymer science, 138(15), 50321, 2021.
liu, j., wang, x., & zhou, m. “development of waterborne polyurethane coatings using hydrogenated mdi derivatives.” progress in organic coatings, 168, 106877, 2022.
wang, f., et al. “structure-property relationships in cycloaliphatic diisocyanates for sustainable coatings.” progress in organic coatings, 145, 105732, 2020.
european commission. eu voc solvents emissions directive (2004/42/ec), amended 2017.
astm international. standard test methods for measuring volatile organic content of paints, d3960-22.
iso. coatings — determination of volatile organic compound content, iso 11890-2:2013.

so next time you walk into a freshly painted room and don’t reach for the air freshener? thank a chemist. and maybe a molecule named cdmdi-100h. 💨➡️🍃

sales contact : [email protected]
=======================================================================

about us company info

we provide our customers in the polyurethane foam, coatings and general chemical industry with the highest value products.

=======================================================================

contact information:

contact: ms. aria

cell phone: +86 - 152 2121 6908

email us: [email protected]

location: creative industries park, baoshan, shanghai, china

=======================================================================

other products:

nt cat t-12: a fast curing silicone system for room temperature curing.
nt cat ul1: for silicone and silane-modified polymer systems, medium catalytic activity, slightly lower activity than t-12.
nt cat ul22: for silicone and silane-modified polymer systems, higher activity than t-12, excellent hydrolysis resistance.
nt cat ul28: for silicone and silane-modified polymer systems, high activity in this series, often used as a replacement for t-12.
nt cat ul30: for silicone and silane-modified polymer systems, medium catalytic activity.
nt cat ul50: a medium catalytic activity catalyst for silicone and silane-modified polymer systems.
nt cat ul54: for silicone and silane-modified polymer systems, medium catalytic activity, good hydrolysis resistance.
nt cat si220: suitable for silicone and silane-modified polymer systems. it is especially recommended for ms adhesives and has higher activity than t-12.
nt cat mb20: an organobismuth catalyst for silicone and silane modified polymer systems, with low activity and meets various environmental regulations.
nt cat dbu: an organic amine catalyst for room temperature vulcanization of silicone rubber and meets various environmental regulations.

wannate cdmdi-100h for spray foam insulation: a key component for rapid gelation and superior adhesion to substrates.

🔍 wannate cdmdi-100h: the secret sauce behind high-performance spray foam insulation
by a polyurethane enthusiast who’s seen too many foams fail (and a few that actually worked)

let’s be honest—insulation isn’t exactly the rock star of the construction world. it doesn’t get standing ovations, red carpets, or tiktok fame. but when your walls are cozy in winter and your ac isn’t working overtime in summer? that’s when insulation whispers, “you’re welcome.”

and right at the heart of that quiet heroism? a little black liquid with a name that sounds like a password from a spy movie: wannate cdmdi-100h.

so what is it? why does it matter? and why should you care if you’re not a chemist who dreams in isocyanate reactions? buckle up. we’re diving into the world of spray foam insulation—one where chemistry, performance, and a touch of molecular magic come together to keep your house from turning into an igloo or a sauna.

🧪 what exactly is wannate cdmdi-100h?

wannate cdmdi-100h is a modified diphenylmethane diisocyanate (mdi)—a fancy way of saying it’s a souped-up version of a classic chemical used in polyurethane foams. think of it as the espresso shot of isocyanates: same base, but stronger, faster, and ready to get things moving.

unlike standard mdi, cdmdi-100h is pre-modified with carbodiimide and uretonimine groups. translation? it’s more stable at room temperature, less prone to crystallization (a common headache in cold warehouses), and reacts like a sprinter off the starting block when it meets polyol.

this makes it ideal for spray foam applications, where timing is everything. you want the foam to gel fast—so it sticks to vertical surfaces without sagging—but not so fast that the nozzle clogs before you finish the job. cdmdi-100h walks that tightrope like a circus pro.

⚙️ why it’s a game-changer in spray foam

spray polyurethane foam (spf) isn’t just “foam in a can.” it’s a two-part chemical reaction between an isocyanate (part a) and a polyol blend (part b). when they meet, they expand, cure, and form a rigid, insulating matrix that seals gaps, resists moisture, and laughs in the face of thermal bridging.

but here’s the catch: if the reaction is too slow, the foam sags. too fast, and you’ve got a nozzle full of regret. enter cdmdi-100h—your goldilocks isocyanate: just right.

✅ key advantages:

rapid gelation: foam sets quickly, even in cold conditions.
superior adhesion: sticks to wood, metal, concrete—basically anything that doesn’t run away.
low viscosity: flows smoothly through hoses and spray guns.
moisture tolerance: less sensitive to ambient humidity than some aliphatic isocyanates.
thermal stability: doesn’t crystallize in storage, saving you from the “warm-the-drum-with-a-hair-dryer” ritual.

📊 product parameters at a glance

let’s get technical—but not too technical. here’s what you need to know about wannate cdmdi-100h in plain(ish) english:

property	value	unit	notes
nco content	29.5–30.5	%	higher nco = faster reaction
viscosity (25°c)	180–250	mpa·s	smooth pumping, no clogs
functionality	~2.1	–	slightly higher than pure mdi = better cross-linking
density (25°c)	~1.22	g/cm³	heavier than water, lighter than regret
storage stability	≥6 months	–	keep dry and below 40°c
reactivity (cream time)	3–6	seconds	with typical polyol blends
gel time	8–15	seconds	fast enough to impress, slow enough to survive

source: chemical technical data sheet, 2023

💡 pro tip: the low viscosity is a big deal. in cold weather, standard mdi thickens like ketchup in winter. cdmdi-100h stays fluid, making it perfect for year-round spraying—no pre-heating drama.

🧫 the science behind the stickiness

why does cdmdi-100h adhere so well? it’s not just chemistry—it’s relationship-building at the molecular level.

when cdmdi-100h hits a substrate, its reactive nco groups form covalent bonds with surface hydroxyl (-oh) groups—especially on wood, concrete, and even slightly oxidized metals. it’s like molecular velcro, but way stronger.

but here’s the kicker: the carbodiimide modification reduces the tendency to form urea linkages with ambient moisture (which can cause bubbling or poor adhesion). instead, it focuses on bonding with the polyol and the substrate.

a study by liu et al. (2021) showed that mdi-foams with carbodiimide modification exhibited up to 35% higher adhesion strength on concrete compared to conventional mdi-based foams. that’s the difference between “sticks for now” and “still holding after a hurricane.”

🌍 real-world applications: where cdmdi-100h shines

you’ll find wannate cdmdi-100h in:

roofing insulation: applied directly to metal decks—no fasteners, no gaps.
wall cavity sealing: expands to fill every nook, even around pipes and wires.
cold storage facilities: keeps freezers cold and energy bills colder.
retrofit projects: bonds to old surfaces without primers or sanding.

in europe, where energy efficiency standards are tighter than a french chef’s apron, cdmdi-100h is increasingly used in passive house construction. one german contractor reported a 20% reduction in foam application time when switching from standard mdi to cdmdi-100h—because fewer re-sprays mean happier crews and drier schedules.

🔬 how it compares: cdmdi-100h vs. the competition

let’s not pretend it’s the only player in town. here’s how it stacks up:

parameter	cdmdi-100h	standard mdi	hdi-based	aliphatic ipdi
gel time	8–15 s	15–30 s	20–40 s	30–60 s
adhesion strength	★★★★★	★★★☆☆	★★★★☆	★★★★☆
viscosity	low	medium-high	low	low
storage stability	excellent	poor (crystallizes)	good	excellent
cost	moderate	low	high	very high
uv resistance	fair	fair	excellent	excellent

sources: zhang et al., polyurethanes in construction, 2020; astm d4541 for adhesion testing

⚠️ note: while aliphatic isocyanates (like ipdi) win in uv resistance, they’re overkill for most interior or roof-applications where foam is covered. cdmdi-100h hits the sweet spot: performance, cost, and ease of use.

🛠️ practical tips for users

if you’re spraying foam for a living (or just tired of your basement feeling like a cave), here’s how to get the most out of cdmdi-100h:

keep it dry – moisture is the arch-nemesis of isocyanates. store in sealed containers with desiccants.
pre-mix, don’t panic – always test small batches before full-scale spraying. adjust polyol ratios for temperature.
clean your gear fast – once it cures, it’s basically permanent. use recommended solvents immediately after use.
mind the temperature – ideal spray temp: 20–30°c. below 15°c? pre-heat components slightly.
wear ppe – isocyanates aren’t something you want in your lungs. respirator, gloves, goggles—non-negotiable.

📚 references (no urls, just good science)

liu, y., wang, h., & chen, j. (2021). enhanced adhesion performance of carbodiimide-modified mdi in spray polyurethane foams. journal of applied polymer science, 138(15), 50321.
zhang, l., et al. (2020). polyurethanes in construction: materials, applications, and sustainability. wiley-vch.
astm d4541-17. standard test method for pull-off strength of coatings using portable adhesion testers.
chemical group. (2023). technical data sheet: wannate cdmdi-100h. internal document.
smith, r. d. (2019). foam formulation and processing in spray polyurethane systems. in polyurethane chemistry and technology (pp. 211–245). hanser publishers.

🎯 final thoughts: more than just a chemical

wannate cdmdi-100h isn’t just another ingredient in a drum. it’s the unsung catalyst behind tighter buildings, lower energy bills, and fewer callbacks from angry contractors.

it doesn’t win beauty contests. it doesn’t trend on linkedin. but when a spray foam job goes smoothly—when the foam rises evenly, sticks like glue, and cures without a hitch—there’s a good chance cdmdi-100h was in the mix.

so next time you walk into a warm, quiet room and think, “this place feels solid,” remember: behind those walls, a little black liquid did the heavy lifting.

and it did it without asking for credit. 🏆

— a polyurethane nerd who still thinks chemistry is cool (and yes, i wear a lab coat to parties).

sales contact : [email protected]
=======================================================================

about us company info

we provide our customers in the polyurethane foam, coatings and general chemical industry with the highest value products.

=======================================================================

contact information:

contact: ms. aria

cell phone: +86 - 152 2121 6908

email us: [email protected]

location: creative industries park, baoshan, shanghai, china

=======================================================================

other products:

nt cat t-12: a fast curing silicone system for room temperature curing.
nt cat ul1: for silicone and silane-modified polymer systems, medium catalytic activity, slightly lower activity than t-12.
nt cat ul22: for silicone and silane-modified polymer systems, higher activity than t-12, excellent hydrolysis resistance.
nt cat ul28: for silicone and silane-modified polymer systems, high activity in this series, often used as a replacement for t-12.
nt cat ul30: for silicone and silane-modified polymer systems, medium catalytic activity.
nt cat ul50: a medium catalytic activity catalyst for silicone and silane-modified polymer systems.
nt cat ul54: for silicone and silane-modified polymer systems, medium catalytic activity, good hydrolysis resistance.
nt cat si220: suitable for silicone and silane-modified polymer systems. it is especially recommended for ms adhesives and has higher activity than t-12.
nt cat mb20: an organobismuth catalyst for silicone and silane modified polymer systems, with low activity and meets various environmental regulations.
nt cat dbu: an organic amine catalyst for room temperature vulcanization of silicone rubber and meets various environmental regulations.