- Adhesives
Desmodur® ultra N 3689 SN
Aliphatic polyisocyanate based on hexamethylene diisocyanate. Hardener component for weather resistant PUR-coatings.
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About
Product Types
- HDI
- PIC
- Aliphatic polyisocyanate
- Crosslinkers
- Polyisocyanate
- Hardeners
- Polyisocyanurate
- Isocyanate
- Reactive system
Material
- Adhesives
- Moisture resistant, Ultra-low monomer, Heat activated, Contact adhesive
- Coatings, paints & inks
- Low viscous, Thermally resistant, Ultra-low monomer, Weather resistant
General Characterization
Aliphatic polyisocyanate based on hexamethylene diisocyanate.
Hardener component for weather resistant PUR-coatings.
Hardener component for weather resistant PUR-coatings.
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.
- 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.
Sampling
No data available
Packaging Type
No data available
Technical Properties & Datasheets
Characteristics
| Property Name | Test Method | Unit | Value |
|---|---|---|---|
| Density at 20 °C | DIN 51757 | g/cm3 | 1.12 |
| Flash point | DIN EN ISO 2719/A | °C | approx. 58 |
| Equivalent weight | approx. 207 |
Specifications
| Property Name | Test Method | Unit | Value |
|---|---|---|---|
| Non-volatile content (2.2 g/120 min/100 °C) | M020-ISO 3251 | % | 88.5 ± 1 |
| NCO content | M105-ISO 11909 | % | 20.3 ± 0.5 |
| Viscosity at 23 °C | M014-ISO 3219/A.3 | mPa*s | 325 ± 75 |
| Monomeric HDI | M106-ISO 10283 | % | < 0.10 |
| Color value (Hazen) | M017-EN 1557 | ≤ 60 |
Downloads
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Technical Data Sheet
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Safety Data SheetNo direct download available, please visit www.productsafetyfirst.covestro.com
