- Coatings, paints & inks
Bayhydur® ultra 308
Hydrophilic aliphatic polyisocyanate based on hexamethylene diisocyanate (HDI). Hardener for waterborne two-component coatings, top coats, sealers and as an additive to enhance the property profile.
i
Market Switch
Selection will influence the results you get.
About
Product Types
- HDI
- PIC
- Hydrophilic polyisocyanate
- Aliphatic polyisocyanate
- Crosslinkers
- Polyisocyanate
- Hardeners
- Polyisocyanurate
- Isocyanate
Material
- Coatings, paints & inks
- Waterborne, Weather resistant, Solvent-free, Easy mixing, Ultra-low monomer
General Characterization
Hydrophilic aliphatic polyisocyanate based on hexamethylene diisocyanate (HDI).
Hardener for waterborne two-component coatings, top coats, sealers and as an additive to enhance the property profile.
Hardener for waterborne two-component coatings, top coats, sealers and as an additive to enhance the property profile.
Storage Conditions
- Storage in original sealed Covestro container.
- Recommended storage temperature: 0 - 30 °C.
- Protect from moisture, heat and foreign material.
General information: Hydrophilic isocyanates are very moisture-sensitive and react with water to form carbon dioxide and insoluble ureas. The containers must always be kept tightly closed. The access of water in all forms (moist air, solvents, moist containers) must be prevented, because the generation of carbon dioxide can lead to dangerous increases in pressure. 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: Hydrophilic isocyanates are very moisture-sensitive and react with water to form carbon dioxide and insoluble ureas. The containers must always be kept tightly closed. The access of water in all forms (moist air, solvents, moist containers) must be prevented, because the generation of carbon dioxide can lead to dangerous increases in pressure. 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 |
|---|---|---|---|
| Flash point | DIN EN 22 719 | °C | approx. 208 |
| Density at 20 °C | DIN 53 217/3 | g/ml | approx. 1.15 |
Specifications
| Property Name | Test Method | Unit | Value |
|---|---|---|---|
| NCO content | M105-ISO 11909 | % | approx. 20 |
| Monomeric HDI | M106-ISO 10283 | % | < 0.1 |
| Hazen color value | M017-EN 1557 | < 60 | |
| Viscosity at 23 °C | M014-ISO 3219/A.3 | mPa*s | approx. 900 |
Downloads
-
Technical Data Sheet
-
Safety Data SheetNo direct download available, please visit www.productsafetyfirst.covestro.com
