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  • Coatings

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

  • Acrylate dispersion

Material

Coatings
Hard, Waterborne, Flexible, Elastic

General Characterization

No data available

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 > 0º-25ºC.

Sampling

No data available

Packaging Type

No data available

Technical Properties & Datasheets

Property Name Test Method Unit Value
Non-volatile content (1g/1h/125°C) % 40 - 43
Viscosity at 23°CD= approx. 40s-1 mPa∙s 2,000 - 3,500
pH (1:4 in demineralized water) 7.2 - 8.2

Property Name Test Method Unit Value
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
Density at 20°C g/ml approx. 1.06
Equivalent weight g/mol approx. 830
Hydroxyl content (calculated on solid resin) % approx. 5.0
Flash point (no flash point up to initial boiling point) °C > 95
Hydroxyl content (calculated on solid resin) % approx. 5.0
Acid value mg KOH/g approx. 9.4
Density at 20°C g/ml approx. 1.06

Downloads

Technical Data Sheet
Safety Data Sheet
No direct download available, please visit www.productsafetyfirst.covestro.com
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