Mondur® MRS

2,4' rich polymeric MDI; NCO: approx. 31.5 Wt. %; Viscosity: approx. 200 mPa·s @ 25°C

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Product Types

  • PMDI


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General Characterization

Mondur MRS is a high functionality polymeric diphenylmethane diisocyanate (pMDI) with an enhanced 2,4’-MDI isomer content.

Storage Conditions

Mondur MRS polyisocyanate must be stored in tightly closed containers and protected from moisture. Processability of this material can be adversely affected by contamination. It will react slowly with water to form polyureas and liberate carbon dioxide gas, which may cause sealed containers to expand and rupture. Recommended storage temperatures are 10° to 30°C (50° to 86°F). The shelf life is six months after receipt of product by customer, when stored in closed original containers and stored under the recommended conditions.


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Packaging Type

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Technical Properties & Datasheets


Property Name Test Method Unit Value
Density at 25°C lb/gal 10.3
Equivalent weight avg. 133
Appearance Dark brown liquid
Flash point PMCC °C 199
Specific gravity at 25°C 1.24


Technical Data Sheet
Safety Data Sheet
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