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  • 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

Aqueous hydroxyfunctional polyacrylic dispersion.
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.

Sampling

No data available

Packaging Type

No data available

Technical Properties & Datasheets

Characteristics

Property Name Test Method Unit Value
Equivalent weight g/mol approx. 830
Flash point (No flash point up to initial boiling point) DIN EN ISO 2719 °C > 95
Density at 20 °C DIN DIN EN ISO 2811 g/ml approx. 1.06
OH % on solid calculated % approx. 5.0
Acid value DIN EN ISO 3682 mg KOH/g approx. 9.4

Specifications

Property Name Test Method Unit Value
Non-volatile content (1g / 1h / 125°C) DIN EN ISO 3251 % 40 - 43
Viscosity at 23 °C, D = approx. 40 s^-1 DIN EN ISO 3219/A.3 mPa*s 1,000 - 3,500
pH-value DIN ISO 976 7.2 - 8.2

Downloads

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

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