- Adhesives
- Coatings, paints & inks
Desmodur® ultra N 3900
Low-viscosity, aliphatic polyisocyanate resin based on hexamethylene diisocyanate. As the hardener for weather-stable coating systems.
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About
Product Types
- HDI
- PIC
- Aliphatic polyisocyanate
- Crosslinkers
- Polyisocyanate
- Hardeners
- Polyisocyanurate
- Isocyanate
Material
- Coatings, paints & inks
- Weather resistant, Low viscous, Easy mixing, Ultra-low monomer
- Adhesives
- Ultra-low monomer, Solvent-free
General Characterization
Low-viscosity, aliphatic polyisocyanate resin based on hexamethylene diisocyanate.
As the hardener for weather-stable coating systems.
As the hardener for weather-stable 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.
-
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
Characteristics
| Property Name | Test Method | Unit | Value |
|---|---|---|---|
| Equivalent weight | approx. 179 | ||
| Flash point | DIN EN 22 719 | °C | approx. 203 |
| Density | DIN EN ISO 2811 | g/cm3 | approx. 1.15 |
Specifications
| Property Name | Test Method | Unit | Value |
|---|---|---|---|
| Viscosity at 23 °C | M014-ISO 3219/A.3 | mPa*s | 730 ± 100 |
| Hazen color value | M017-EN 1557 | ≤ 40 | |
| Monomeric HDI | M106-ISO 10283 | % | < 0.10 |
| NCO content | M105-ISO 11909 | % | 23.5 ± 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
