Desmodur® N 3700
Aliphatic polyisocyanate (highly functional HDI trimer).
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About
Product Types
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Material
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General Characterization
Aliphatic polyisocyanate (highly functional HDI trimer).
As the hardener component for lightfast, fast drying polyurethane coating systems.
As the hardener component for lightfast, fast 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.
- 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
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Technical Properties & Datasheets
Characteristics
| Property Name | Test Method | Unit | Value |
|---|---|---|---|
| Equivalent weight | approx. 210 | ||
| Viscosity at 25 °C | DIN EN ISO 3219/A.3 | mPa*s | approx. 13,000 |
| Flash point | DIN EN 22 719 | °C | approx. 247 |
| Density at 20 °C | DIN EN ISO 2811 | g/ml | approx. 1.17 |
Specifications
| Property Name | Test Method | Unit | Value |
|---|---|---|---|
| NCO content | M105-ISO 11909 | % | 20.0 ± 1.0 |
| Monomeric HDI | M106-ISO 10283 | % | < 0.25 |
| Color value (Hazen) | M017-EN 1557 | ≤ 80 | |
| Viscosity at 23 °C | M014-ISO 3219/A.3 | mPa*s | 16,000 ± 4,000 |
Downloads
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Technical Data Sheet
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Safety Data SheetNo direct download available, please visit www.productsafetyfirst.covestro.com
