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About
Product Types
- PIC
- Crosslinkers
- Hardeners
- Aliphatic polyisocyanate
- Hydrophilic polyisocyanate
- Isocyanate
- Polyisocyanurate
- Polyisocyanate
Material
- Coatings
- Easy mixing, Solvent-free, Weather resistant, Waterborne
General Characterization
Bayhydur XP 2451/1 is a hydrophilic aliphatic polyisocyanate based on hexamethylene diisocyanate (HDI).
It is suitable as a hardener for waterborne two-component coatings,top coats,sealers, and as an additive to enhance the property profile.
It is suitable as a hardener for waterborne two-component coatings,top coats,sealers, and as an additive to enhance the property profile.
Storage Conditions
Bayhydur XP 2451/1 should be stored in tightly sealed original containers and protected from moisture, heat, and foreign materials. 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 is 0º-30ºC.
Sampling
No data available
Packaging Type
No data available
Technical Properties & Datasheets
| Property Name | Test Method | Unit | Value |
|---|---|---|---|
| NCO content | % | 19.8 - 20.8 | |
| Hazen color value | < 60 | ||
| Monomeric HDI | % | < 0.23 | |
| Viscosity at 23oC | mPa∙s | 600 - 1,200 |
| Property Name | Test Method | Unit | Value |
|---|---|---|---|
| Density at 20oC | g/ml | approx. 1.15 | |
| Flash point | °C | approx. 195 |
Downloads
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Technical Data Sheet
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Safety Data SheetNo direct download available, please visit www.productsafetyfirst.covestro.com