- 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
- Solventborne, Weather resistant, High functional
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 |
|---|---|---|---|
| Flash point | °C | approx. 42 | |
| Specific gravity at 20°C | g/ml | approx. 1.13 | |
| Viscosity at 25°C | mPa∙s | approx. 1,600 | |
| Equivalent weight | approx. 236 | ||
| Weight per gallon at 20°C | 9.41 |
Specifications
| Property Name | Test Method | Unit | Value |
|---|---|---|---|
| Monomeric HDI | % | < 0.23 | |
| Non-volatile content (2.2 g / 120 min / 100^oC) | % | 90 ± 1 | |
| Viscosity at 23°C | mPa∙s | 1,800 ± 500 | |
| NCO content | % | 17.8 ± 0.5 | |
| Hazen color value | ≤ 40 |
Downloads
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Technical Data Sheet
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Safety Data SheetNo direct download available, please visit www.productsafetyfirst.covestro.com
