Desmodur® N 3200A

Aliphatic polyisocyanate (low-viscosity HDI biuret). As the hardener component for lightfast polyurethane coating systems.

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General Characterization

Desmodur N 3200A is an aliphatic polyisocyanate (low-viscosity HDI biuret).
It is suitable for use as the hardener component for lightfast polyurethane coating systems.

Storage Conditions

Desmodur N 3200A 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. Storage at significant lower temperatures will result in solidification. This solidification is reversible by briefly heating the product without adversely affecting the quality of the product. Recommended storage temperature is 5º-25ºC.


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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 1300 - 3000
NCO content % 22.5 - 23.5
Monomeric HDI % ≤ 0.70
Hazen color value ≤ 80

Property Name Test Method Unit Value
Weight per gallon at 25°C lb. 9.33
Flash point (Setaflash) °C 196
Appearance Clear, slightlyyellow liquid
Appearance Clear, slightlyyellow liquid
Specific gravity at 25°C g/cm^3 1.12
Viscosity at 23°C mPa∙s 2,500
Equivalent weight avg. (as supplied) 181


Technical Data Sheet
Safety Data Sheet
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