Bayhydrol® U XP 2239
Water-thinnable hydroxyl-bearing polyurethane dispersion. As the co-reactant for aqueous polyisocyanates in the formulation of water-thinnable one-component polyurethane coatings
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About
Product Types
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Material
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General Characterization
Water-thinnable hydroxyl-bearing polyurethane dispersion.
As the co-reactant for aqueous polyisocyanates in the formulation of water-thinnable one-component polyurethane coatings.
As the co-reactant for aqueous polyisocyanates in the formulation of water-thinnable one-component polyurethane coatings.
Storage Conditions
- Storage in original sealed Covestro containers.
- Recommended storage temperature: 5 - 25 °C.
- Protect fromfrost , heat and foreign material.
General information: The product is sensitive to frost. Prolonged freezing can damage the product irreversibly. Cold temperatures cause the product to become opaque. Heating and homogenizing it makes the product transparent again and to our knowledge it can be used without any adverse effects on quality. Prolonged storage at higher temperatures may result in a decrease of viscosity and/or an increase of average particle size, possibly resulting in sedimentation or coagulation.
Contamination with certain bacteria, fungi or algae may render the product unusable.
- Recommended storage temperature: 5 - 25 °C.
- Protect from
General information: The product is sensitive to frost. Prolonged freezing can damage the product irreversibly. Cold temperatures cause the product to become opaque. Heating and homogenizing it makes the product transparent again and to our knowledge it can be used without any adverse effects on quality. Prolonged storage at higher temperatures may result in a decrease of viscosity and/or an increase of average particle size, possibly resulting in sedimentation or coagulation.
Contamination with certain bacteria, fungi or algae may render the product unusable.
Sampling
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Packaging Type
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Technical Properties & Datasheets
Characteristics
| Property Name | Test Method | Unit | Value |
|---|---|---|---|
| Equivalent weight | approx. 1,060 | ||
| Density at 20°C | DIN EN ISO 2811 | g/ml | approx. 1.05 |
| OH content , calculated | % | approx. 1.6 |
Specifications
| Property Name | Test Method | Unit | Value |
|---|---|---|---|
| pH (1:3 with demineralised water) | DIN ISO 976 | 7.9 - 8.9 | |
| Non-volatile content (1g / 1h / 125 °C) | DIN EN ISO 3251 | % | 33.5 - 36.0 |
| Viscosity at 23 °C, D = approx. 30 s^-1 | DIN EN ISO 3219/A.3 | mPa*s | 4,500 - 7,000 |
Downloads
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Technical Data Sheet
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Safety Data SheetNo direct download available, please visit www.productsafetyfirst.covestro.com
