Desmodur® N 3390A BA/SN

Aliphatic polyisocyanate (HDI trimer). As the hardener component for lightfast polyurethane coating systems.

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Product Types

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Material

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General Characterization

Desmodur ultra N 3390A BA/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 3390A BA/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.

Sampling

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Technical Properties & Datasheets

Characteristics

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

Specifications

Property Name Test Method Unit Value
Flash point °C approx. 50
Density at 20°C g/ml approx. 1.13
Equivalent weight approx. 214
Viscosity at 25°C mPa∙s approx. 500

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Technical Data Sheet
Safety Data Sheet
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