Desmodur® N 3500
Aliphatic polyisocyanate (HDI allophanate trimer). As the hardener component for solvent-free, lightfast, scratch-resistant polyurethane coating systems.
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About
Product Types
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Material
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General Characterization
Aliphatic polyisocyanate (HDI allophanate trimer).
As the hardener component for solvent-free, lightfast, scratch-resistant polyurethane coating systems.
As the hardener component for solvent-free, lightfast, scratch-resistant 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
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Packaging Type
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Technical Properties & Datasheets
Characteristics
| Property Name | Test Method | Unit | Value |
|---|---|---|---|
| Flash point | DIN EN ISO 13736 | °C | 208 |
| Equivalent weight | approx. 215 | ||
| Density at 20 °C | DIN 51 757 | g/cm3 | approx. 1.17 |
| Viscosity at 50 °C | M014-ISO 3219/A.3 | mPa*s | approx. 4,200 |
Specifications
| Property Name | Test Method | Unit | Value |
|---|---|---|---|
| Color value (Hazen) | M017-EN 1557 | ≤ 100 | |
| Monomeric HDI | M106-ISO 10283 | % | < 0.25 |
| Viscosity at 23 °C | M014-ISO 3219/A.3 | mPa*s | approx. 35,000 |
| NCO-content | M105-ISO 11909 | % | approx. 19.5 |
Downloads
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Technical Data Sheet
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Safety Data SheetNo direct download available, please visit www.productsafetyfirst.covestro.com
