• Coatings

Bayhydrol® A 2861

Aqueous hydroxyfunctional polyacrylic dispersion.For waterborne 2K-PU-coating with very high flexibility.

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Product Types

  • Dispersion
  • Acrylate dispersion


Elastic, Waterborne, Flexible

General Characterization

Aqueous hydroxyfunctional polyacrylic dispersion.
For waterborne 2K-PU-coating with very high flexibility.

Storage Conditions

- Storage in original sealed Covestro container.

- Recommended storage temperature: > 0 - 23 °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.
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 dimethylethanolamine.
Contamination with certain bacteria, fungi or algae may render the product unusable.


No data available

Packaging Type

No data available

Technical Properties & Datasheets

Property Name Test Method Unit Value
Viscosity bei 23 °CD = approx. 41s^-1 DIN EN ISO 3219/A.3 mPa*s ≤ 3,500
pH-value (1:4 in demineralised water) DIN ISO 976 8.0 - 9.0
Non-volatile content (1 g/1 h/125 °C) DIN EN ISO 3251 % 51.5 - 54.5

Property Name Test Method Unit Value
Acid value DIN EN ISO 2114 mg KOH/g approx. 9.0
Density at 20°C DIN EN ISO 2811 g/ml approx. 1.05
OH % on solid DIN 53240/2 % approx. 3.5


Technical Data Sheet
Safety Data Sheet
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