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  • Coatings

Desmodur® N 3400

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

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About

Product Types

  • PIC
  • Crosslinkers
  • Hardeners
  • Aliphatic polyisocyanate
  • Isocyanate
  • Polyisocyanurate
  • Polyisocyanate

Material

Coatings
Easy mixing, Low viscous, Solvent-free, Weather resistant, Waterborne

General Characterization

Desmodur N 3400 is an aliphatic polyisocyanate (HDI uretdione).
It is suitable for use as the hardener component for lightfast polyurethane coating systems.

Storage Conditions

Desmodur N 3400 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

No data available

Packaging Type

No data available

Technical Properties & Datasheets

Property Name Test Method Unit Value
Viscosity at 25°C mPa∙s 152 ± 65
NCO content % 21.8 ± 0.7
Hazen color value ≤ 80.0
Monomeric HDI % ≤ 0.30

Property Name Test Method Unit Value
Equivalent weight approx. 193
Weight per gallon at 25°C lb. 9.50
Viscosity at 23°C mPa∙s approx. 175
Flash point °C approx. 180
Specific gravity at 25°C g/cm3 approx. 1.14

Downloads

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