Lupranate M20S Polymeric MDI for Polyurethane Insulation Systems - 31.5% NCO Content, 200 cps Viscosity
Lupranate® M20S is a polymeric MDI (methylene diphenyl diisocyanate) with a functionality of approximately 2.7, designed for polyurethane system insulation applications. This dark brown liquid is formulated with chemical composition C15H10N2O2 and serves as a versatile component in various polyurethane manufacturing processes.
- Rigid insulation foams via molding, spraying, and frothing processes
- Rigid and semi-flexible integral skin foams
- Adhesives, sealants, and elastomers production
- High-resiliency flexible foams
- Large rigid foam panels and molded flexible foams
| Parameter | Value |
|---|---|
| Appearance | Dark brown liquid |
| NCO Content | 31.5 wt. % |
| Viscosity @ 25°C | 200 cps |
| Hydrolyzable Chlorine | 0.035 wt. % |
| Flash Point (COC) | 200°C |
| Density @ 25°C | 1.23 g/cm³ |
| Initial Boiling Point (5 mm Hg) | 190°C |
| Vapor Pressure @ 25°C | 0.0002 mm Hg |
- Extends foam rise time by 20-30% in low-catalyzed rigid urethane formulations
- Slower reactivity advantageous for large panel applications
- Enhanced processing control for complex molded components
Available in tank cars, tank trucks, and drums. Maintain storage temperature between 15-35°C for optimal performance. Exclude moisture after container opening to prevent viscosity increase. Below 15°C, pumping and pouring become difficult; below 0°C, crystallization may occur. Shelf life: 6 months when stored at 15-35°C with moisture exclusion.
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