- Coatings, paints & inks
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
- HDI
- PIC
- Aliphatic polyisocyanate
- Crosslinkers
- Polyisocyanate
- Hardeners
- Polyisocyanurate
- Isocyanate
Material
- Coatings, paints & inks
- High functional, Solventborne, Weather resistant
General Characterization
Desmodur N 3790 BA is an aliphatic polyisocyanate (high functional HDI trimer).
It is suitable for use as the hardener component for lightfast, rapid-drying polyurethane coating systems.
It is suitable for use as the hardener component for lightfast, rapid-drying polyurethane coating systems.
Storage Conditions
Desmodur N 3790 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. 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. Recommended storage temperature is 0º-30ºC.
Sampling
No data available
Packaging Type
No data available
Technical Properties & Datasheets
Characteristics
| Property Name | Test Method | Unit | Value |
|---|---|---|---|
| Equivalent weight | approx. 236 | ||
| Viscosity at 25°C | mPa∙s | approx. 1,600 | |
| Specific gravity at 20°C | g/ml | approx. 1.13 | |
| Flash point | °C | approx. 42 | |
| Weight per gallon at 20°C | 9.41 |
Specifications
| Property Name | Test Method | Unit | Value |
|---|---|---|---|
| Non-volatile content (2.2 g / 120 min / 100^oC) | % | 90 ± 1 | |
| Viscosity at 23°C | mPa∙s | 1,800 ± 500 | |
| Monomeric HDI | % | < 0.23 | |
| Hazen color value | ≤ 40 | ||
| NCO content | % | 17.8 ± 0.5 |
Downloads
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Technical Data Sheet
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Safety Data SheetNo direct download available, please visit www.productsafetyfirst.covestro.com
