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High reactivity with polyols and amines for rapid gelation and reduced cycle times.
Excellent hydrolytic stability due to pure 4,4'-MDI backbone with minimal carbamate impurities.
Low volatility and low vapor pressure, enhancing workplace safety and handling consistency.
Precision-controlled isocyanate functionality (NCO content ≈ 33.5–33.8 wt%) for predictable stoichiometry.
Optimized for low-fogging performance in automotive interior applications.
Automotive interior trim foams (e.g., headliners, door panels, armrests).
High-resilience flexible slabstock polyurethane foams.
Reaction injection molding (RIM) systems for structural components.
Microcellular elastomers requiring fine cell structure and dimensional stability.
Industrial sealants and adhesives demanding fast green strength development.
| Chemical Type | 4,4'-Diphenylmethane diisocyanate (4,4'-MDI), purified monomeric grade |
| Product Form | Liquid |
| Appearance | Clear, pale yellow to amber liquid |
| NCO Content (wt%) | 33.5–33.8 |
| Viscosity at 25°C (mPa·s) | 15–25 |
| Acidity (as HCl, wt%) | ≤ 0.005 |
| Water Content (wt%) | ≤ 0.02 |
| Storage Stability | Stable under nitrogen blanket at ≤ 30°C for ≥ 12 months |
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E-mail: wangxingqiang@ericwchem.com
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Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China
