- Coatings
Bayhydur® ultra 2700
Hydrophilic aliphatic polyisocyanate based on hexamethylene diisocyanate (HDI). As a hardener for aqueous two-component polyurethane systems.
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About
Product Types
- PIC
- Hydrophilic polyisocyanate
- Aliphatic polyisocyanate
- Crosslinkers
- Polyisocyanate
- Hardeners
- Polyisocyanurate
- Isocyanate
Material
- Coatings
- Ultra-low monomer, Easy mixing, Weather resistant, Waterborne
General Characterization
Hydrophilic aliphatic polyisocyanate based on hexamethylene diisocyanate (HDI).
As a hardener for aqueous two-component polyurethane systems.
As a hardener for aqueous two-component polyurethane systems.
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. Due to the raw materials, the product may show visible turbidity caused by the cold. This turbidity occurs at approx. + 5 °C and is reversible when heated to room temperature. The product properties are not affected.
- 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. Due to the raw materials, the product may show visible turbidity caused by the cold. This turbidity occurs at approx. + 5 °C and is reversible when heated to room temperature. The product properties are not affected.
Sampling
No data available
Packaging Type
No data available
Technical Properties & Datasheets
| Property Name | Test Method | Unit | Value |
|---|---|---|---|
| Viscosity at 23 °C, (D = 200 s^-1) | M014-ISO 3219/A.3 | mPa*s | 75 ± 15 |
| NCO content | M105-ISO 11909 | % | 10.6 ± 0.3 |
| Color value (Hazen) | M017-EN 1557 | ≤ 150 | |
| Monomeric HDI | M106-ISO 10283 | < 0.10 | |
| Non-volatile content (2.2 g / 120 min / 100°C) | M020-ISO 3251 | % | 65 ± 2 |
| Monomeric HDI | M106-ISO 10283 | < 0.10 |
| Property Name | Test Method | Unit | Value |
|---|---|---|---|
| Equivalent weight | approx. 396 | ||
| Density at 20 °C | DIN 51757 | g/ml | approx. 1.06 |
| Flash point | DIN EN ISO 2719 | °C | approx. 61 |
Downloads
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Technical Data Sheet
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Safety Data SheetNo direct download available, please visit www.productsafetyfirst.covestro.com