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Desmodur® N 75A BA

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

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General Characterization

Desmodur N 75A BA is an aliphatic polyisocyanate (HDI biuret).
It is suitable for use as the hardener component for lightfast polyurethane coating systems.

Storage Conditions

Desmodur N 75A 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 5º-25ºC.

Sampling

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Technical Properties & Datasheets

Characteristics

Property Name Test Method Unit Value
Flash point °C approx. 35
Viscosity at 23°C mPa∙s approx. 160
Equivalent weight approx. 255
Density at 20^oC g/ml approx. 1.07

Specifications

Property Name Test Method Unit Value
NCO content % 16.5 ± 0.3
Monomeric HDI % ≤ 0.5
Hazen color value ≤ 60
Non-volatile content (0.1 g / 60 min / 105^oC) % 75 ± 1
Viscosity at 25°C mPa∙s 150 ± 60

Downloads

Technical Data Sheet
Safety Data Sheet
No direct download available, please visit www.productsafetyfirst.covestro.com

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