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  • Coatings

Desmodur® N 3790 BA

Aliphatic polyisocyanate (high functional HDI trimer).As the hardener component for lightfast, rapid-drying polyurethane coating systems.

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About

Product Types

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

Material

Coatings
High functional, Solventborne, Weather resistant

General Characterization

Aliphatic polyisocyanate (high functional HDI trimer).
As the hardener component for lightfast, rapid-drying polyurethane coating systems.

Storage Conditions

- Storage in original sealed Covestro container.

- Recommended storage temperature: 0 - 30 °C.

- Protect from moisture, heat and foreign material.

General information: The product is sensitive to moisture. Storage at higher temperatures will result in increase of color and viscosity. Storage at significant lower temperatures will result in solidification. This solidification is reversible by briefly heating the product without adversely affecting the quality of the product.

Sampling

No data available

Packaging Type

No data available

Technical Properties & Datasheets

Property Name Test Method Unit Value
NCO content DIN EN ISO 11 909 % 17.8 ± 0.5
Monomeric HDI DIN EN ISO 10 283 % < 0.23
Viscosity at 23 °C DIN EN ISO 3219/A.3 mPa*s 1,800 ± 500
Non-volatile content (2.2 g / 120 min / 100 °C) DIN EN ISO 3251 % 90 ± 1
Color value (Hazen) DIN EN 1557 ≤ 40

Property Name Test Method Unit Value
Viscosity at 25 °C DIN EN ISO 3219/A.3 mPa*s approx. 1,600
Density at 20 °C DIN EN ISO 2811 g/ml approx. 1.13
Flash point DIN 53 213/1 °C approx. 42
Equivalent weight approx. 236

Downloads

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