Desmodur® ultra N 3390 BA

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Product Types

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General Characterization

Desmodur ultra N 3390 BA 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 3390 BA 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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Technical Properties & Datasheets

Property Name Test Method Unit Value
NCO content % 19.6 ± 0.3
Color value (Hazen) ≤ 40
Non-volatile content (2.2g / 120 min / 100oC) % 90 ± 1
Monomeric HDI % < 0.10
Viscosity at 23oC mPa∙s 500 ± 150

Property Name Test Method Unit Value
Viscosity at 25oC mPa∙s approx. 450
Flash point °C approx. 50
Density at 20oC g/ml approx. 1.13
Equivalent weight approx. 214


Technical Data Sheet
Safety Data Sheet
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