- Coatings, paints & inks
Bayhydrol® A 2695
Aqueous hydroxyfunctional polyacrylic dispersion. Bayhydrol® A 2695 shows a superior chemical resistance. The resistance can be improved by increasing NCO/OH ratio.
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About
Product Types
- Dispersion
- Acrylate dispersion
Material
- Coatings, paints & inks
- Flexible, Elastic, Hard, Waterborne
General Characterization
Aqueous hydroxyfunctional polyacrylic dispersion.
Bayhydrol® A 2695 shows a superior chemical resistance. The resistance can be improved by increasing NCO/OH ratio.
Bayhydrol® A 2695 shows a superior chemical resistance. The resistance can be improved by increasing NCO/OH ratio.
Storage Conditions
- Storage in original sealed Covestro container.
- Recommended storage temperature: > 0 - 25 °C.
- Protect from frost, heat and foreign material.
General information: The product is sensitive to frost. 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. Contamination with certain bacteria, fungi or algae may render the product unusable.
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 triethanol amine.
Storage at temperature above 25 °C up to 30 °C is possible without irreversibly damaging the product. The decrease of pH value and viscosity, however, might be accelerated at this temperature. The values may possibly fall below the lower limits set forth in section “specification” even within the 6 month representation period.
- Recommended storage temperature: > 0 - 25 °C.
- Protect from frost, heat and foreign material.
General information: The product is sensitive to frost. 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. Contamination with certain bacteria, fungi or algae may render the product unusable.
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 triethanol amine.
Storage at temperature above 25 °C up to 30 °C is possible without irreversibly damaging the product. The decrease of pH value and viscosity, however, might be accelerated at this temperature. The values may possibly fall below the lower limits set forth in section “specification” even within the 6 month representation period.
Sampling
No data available
Packaging Type
No data available
Technical Properties & Datasheets
Characteristics
| Property Name | Test Method | Unit | Value |
|---|---|---|---|
| Flash point (No flash point up to initial boiling point) | DIN EN ISO 2719 | °C | > 95 |
| Hydroxyl content solid resin (calculated) | % | approx. 5.0 | |
| Acid value | DIN EN ISO 3682 | mg KOH/g | approx. 9.4 |
| Density at 20 °C | DIN DIN EN ISO 2811 | g/ml | approx. 1.06 |
| Equivalent weight | g/mol | approx. 830 |
Specifications
| Property Name | Test Method | Unit | Value |
|---|---|---|---|
| pH (supply form) | DIN ISO 976 | 7.2 - 8.2 | |
| Viscosity at 23 °C, D = approx. 40 s^-1 | DIN EN ISO 3219/A.3 | mPa*s | 1,000 - 3,500 |
| Non-volatile content (1g / 1h / 125°C) | DIN EN ISO 3251 | % | 40 - 43 |
Downloads
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Technical Data Sheet
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Safety Data SheetNo direct download available, please visit www.productsafetyfirst.covestro.com
