Bayhydrol® A 2770
Bayhydrol A XP 2770 is an aqueous hydroxyl-functional polyacrylic dispersion, in combination with aliphatic polyisocyanates for waterborne two-component polyurethane coatings.
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About
Product Types
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Material
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General Characterization
Bayhydrol A 2770 is an aqueous hydroxyl-functional polyacrylic dispersion, in combination with aliphatic polyisocyanates for waterborne two-component polyurethane coatings.
Storage Conditions
Bayhydrol A 2770 should be stored in tightly sealed original containers and protected from freezing, heat, and foreign materials. Short-time cooling down to -18°C does not typically damage the product. Prolonged freezing can damage the product irreversibly. 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. The viscosity of the product is largely governed by the pH. As the pH may decrease during storage, a decrease in viscosity is also to be expected. The viscosity can be adjusted to its original value by the addition of small amounts of an aqueous 10% solution of dimethyl ethanol amine. Recommended storage temperature is greater than 0ºC-30ºC.
Sampling
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Packaging Type
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Technical Properties & Datasheets
Characteristics
| Property Name | Test Method | Unit | Value |
|---|---|---|---|
| Acid value | mg KOH/g | approx. 11.0 | |
| Density at 20°C | g/ml | approx. 1.06 | |
| Hydroxyl content (on solid resin, calculated) | % | approx. 3.9 |
Specifications
| Property Name | Test Method | Unit | Value |
|---|---|---|---|
| pH (supply form) | 7.0 - 9.0 | ||
| Non-volatile content (1g/1h/125°C,circulating air oven) | % | 42 - 46 | |
| Viscosity at 23°C(D = approx. 40 s^-1) | mPa∙s | ≤ 1,200 |
Downloads
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Technical Data Sheet
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Safety Data SheetNo direct download available, please visit www.productsafetyfirst.covestro.com
