Aliphatic polyisocyanate (HDI trimer). As the hardener component for lightfast polyurethane coating systems.
Product Types
No data available
Material
No data available
General Characterization
Desmodur N 3300A is an aliphatic polyisocyanate (HDI trimer).
It is suitable for use as the hardener component for lightfast polyurethane coating systems.
Characteristics
| Property Name | Test Method | Unit | Value |
| Monomeric HDI | % | ≤ 0.15 | |
| Hazen color value | ≤ 40 | ||
| NCO content | % | 21.8 ± 0.3 | |
| Viscosity at 25°C | mPa∙s | 2,500 ± 750 |
Specifications
| Property Name | Test Method | Unit | Value |
| Weight per gallon at 25°C | lb. | 9.75 | |
| Viscosity at 23°C | mPa∙s | approx. 3,000 | |
| Flash point | °C | approx. 238 | |
| Equivalent weight | approx. 193 | ||
| Specific gravity at 25°C | g/cm^3 | 1.17 |
