- Coatings, paints & inks
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
- HDI
- PIC
- Aliphatic polyisocyanate
- Crosslinkers
- Polyisocyanate
- Hardeners
- Polyisocyanurate
- Isocyanate
Material
- Coatings, paints & inks
- Weather resistant, High functional, Solvent-free
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
No data available
Packaging Type
No data available
Technical Properties & Datasheets
Characteristics
| Property Name | Test Method | Unit | Value |
|---|---|---|---|
| Density at 20 °C | DIN 51 757 | g/cm3 | approx. 1.17 |
| Flash point | DIN EN ISO 13736 | °C | approx. 208 |
| Viscosity at 50 °C | M014-ISO 3219/A.3 | mPa*s | approx. 4,200 |
| Equivalent weight | approx. 215 |
Specifications
| Property Name | Test Method | Unit | Value |
|---|---|---|---|
| NCO-content | M105-ISO 11909 | % | approx. 19.5 |
| Color value (Hazen) | M017-EN 1557 | ≤ 100 | |
| Viscosity at 23 °C | M014-ISO 3219/A.3 | mPa*s | approx. 35,000 |
| Monomeric HDI | M106-ISO 10283 | % | ≤ 0.24 |
Downloads
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Technical Data Sheet
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Safety Data SheetNo direct download available, please visit www.productsafetyfirst.covestro.com
