- 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
- Hard, Waterborne, Flexible, Elastic
General Characterization
Bayhydrol A 2695 is an aqueous hydroxyfunctional polyacrylic dispersion.
It shows a superior chemical resistance. The resistance can be improved by increasing the NCO/OH ratio.
It shows a superior chemical resistance. The resistance can be improved by increasing the NCO/OH ratio.
Storage Conditions
Bayhydrol A 2695 should be stored in tightly sealed original containers and protected from freezing, heat, and foreign materials. The product is sensitive to freezing. 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 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 is greater than 0ºC-25ºC.
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 is greater than 0ºC-25ºC.
Sampling
No data available
Packaging Type
No data available
Technical Properties & Datasheets
Characteristics
| Property Name | Test Method | Unit | Value |
|---|---|---|---|
| Hydroxyl content (calculated on solid resin) | % | approx. 5.0 | |
| Density at 20°C | g/ml | approx. 1.06 | |
| Flash point (no flash point up to initial boiling point) | °C | > 95 | |
| Acid value | mg KOH/g | approx. 9.4 | |
| Equivalent weight | g/mol | approx. 830 |
Specifications
| Property Name | Test Method | Unit | Value |
|---|---|---|---|
| Viscosity at 23°CD= approx. 40s^-1 | mPa*s | 1,000 - 3,500 | |
| Non-volatile content (1g/1h/125°C) | % | 40 - 43 | |
| pH (supply form) | 7.2 - 8.2 |
Downloads
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Technical Data Sheet
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Safety Data SheetNo direct download available, please visit www.productsafetyfirst.covestro.com
