Desmodur® N 75 BA

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

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General Characterization

Desmodur N 75 BA is an aliphatic polyisocyanate (HDI biuret).

Storage Conditions

Desmodur N 75 BA polyisocyanate should be stored in tightly sealed containers and protected from heat, moisture, and foreign materials. Recommended storage temperature is between 5° and 25°C. Storage at higher temperatures will result in an increase of color and viscosity.


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Technical Properties & Datasheets

Property Name Test Method Unit Value
Non-volatile content (2.2g/120 min/100°C) % 75 ± 1
Viscosity @ 23°C mPa∙s 160 ± 50
Monomeric HDI % < 0.5
Hazen color value ≤ 40
NCO content % 16.5 ± 0.3

Property Name Test Method Unit Value
Viscosity at 25°C approx. 140
Equivalent weight approx. 255
Density @ 20°C g/ml approx. 1.07
Flash point °C approx. 35


Technical Data Sheet
Safety Data Sheet
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