Mondur® MR

polymeric MDI; NCO: approx. 31.3 Wt. %; Viscosity: approx. 200 mPa·s @ 25°C

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Product Types

  • PMDI


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General Characterization

Mondur MR is an aromatic polymeric isocyanate based on diphenylmethane-diisocyanate (MDI).

Storage Conditions

Mondur MR 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).


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Packaging Type

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Technical Properties & Datasheets


Property Name Test Method Unit Value
Viscosity at 25°C mPa•s 150 - 250
NCO content wt.-% min. 31.0
Acidity wt.-% 0.01 - 0.03


Property Name Test Method Unit Value
Specific gravity at 25°C 1.24
Density at 25°C lb/gal 10.3
Flash point PMCC °C 199
Equivalent weight avg. 132
Appearance Dark brown liquid


Technical Data Sheet
Safety Data Sheet
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