Desmodur® ultra N 3372 SN

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Product Types

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General Characterization

Desmodur ultra N 3372 SN is an aliphatic polyisocyanate (HDI trimer).
It is suitable for use as the hardener component for lightfast polyurethane coating systems.

Storage Conditions

Desmodur ultra N 3372 SN 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 0º-30ºC.


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Packaging Type

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Technical Properties & Datasheets

Property Name Test Method Unit Value
Viscosity at 23^oC mPa∙s 80 ± 20
Non-volatile content 2.2 g / 120 min / 100^oC % 72.5 ± 1.5
Monomeric HDI % < 0.10
NCO content % 15.8 ± 0.5
Hazen color value ≤ 40

Property Name Test Method Unit Value
Equivalent weight approx. 266
Viscosity at 25^oC mPa∙s approx. 70
Density at 20^oC g/ml approx. 1.07
Flash point °C approx. 47


Technical Data Sheet
Safety Data Sheet
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