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High functionality crude MDI composition with balanced NCO content for controlled reactivity in polyurethane systems.
Excellent compatibility with polyester and polyether polyols, enabling uniform phase mixing and stable formulation.
Low monomeric MDI (4,4'-MDI) content, supporting improved handling safety and reduced vapor pressure during processing.
Consistent batch-to-batch performance, ensuring reliable cure kinetics and mechanical property reproducibility.
Optimized for ambient- and elevated-temperature curing applications without requiring excessive catalyst loading.
Rigid polyurethane foam for insulation panels and refrigeration equipment.
Structural adhesives and laminating systems in automotive and transportation composites.
Coatings and elastomers requiring high crosslink density and chemical resistance.
Reaction injection molding (RIM) and structural foam components for industrial enclosures.
Sealants and gasketing materials used in construction and HVAC applications.
| Chemical Type | Crude diphenylmethane diisocyanate (MDI) mixture |
| Product Form | Liquid |
| Appearance | Pale yellow to amber clear liquid |
| NCO Content (wt %) | 30.5 – 32.0 |
| Viscosity at 25°C (mPa·s) | 150 – 250 |
| Acidity (as HCl, wt %) | ≤ 0.02 |
| Water Content (wt %) | ≤ 0.05 |
| Storage Stability | Stable for ≥12 months at <25°C in sealed, dry conditions |
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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
