Desmodur® N 31100

Aliphatic polyisocyanate based on hexamethylene diisocyanate. As the hardener component for lightfast, weather-stable coating systems.

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General Characterization

Desmodur N 31100 is an aliphatic polyisocyanate based on hexamethylene diisocyanate (HDI).
It is suitable for use as the hardener component for lightfast, weather-stable coating systems.

Storage Conditions

Desmodur N 31100 should be stored in tightly sealed original containers and protected from moisture, heat, and foreign materials. The product is sensitive to moisture. Storage at higher temperatures will result in increase of color and viscosity. Recommended storage temperature is 5º-30ºC.


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Technical Properties & Datasheets


Property Name Test Method Unit Value
Monomeric HDI % ≤ 0.14
NCO content % 19.5 ± 0.5
Viscosity at 25°C mPa∙s 450 ± 150
Hazen color value ≤ 80


Property Name Test Method Unit Value
Equivalent weight approx. 215
Solids wt.-% approx. 99.8
Flash point °C 193
Weight per gallon lb. 9.3
Viscosity at 23^oC mPa∙s approx. 500
Density at 20°C g/cm^3 1.106


Technical Data Sheet
Safety Data Sheet
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