• Coatings

Bayhydrol® A 242

OH-functional PAC combinable with Bayhydur® and Desmodur® N for 2K PU system for various applications by brush, roller or spray.

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Product Types

  • Dispersion
  • Acrylate dispersion


Elastic, Hard, Solvent-free, Waterborne, Flexible

General Characterization

Water-thinnable polyacrylic resin containing hydroxyl groups.
As a co-reactant for Bayhydur® and Desmodur® N/ultra N polyisocyanates in the formulation of aqueous two-component polyurethane systems for various applications by brush, roller or spray.

Storage Conditions

- Storage in original sealed Covestro container.

Recommended storage temperature: > 0 - 30 °C.

Protect from frost, heat and foreign material.

General information: The product is sensitive to frost. Freezing will 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.
On the basis of the given intrinsic product properties and the respective circumstances during storage the product may show a slight film formation also in the original packaging. Pre-filtration of the material before use is recommended.


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Packaging Type

No data available

Technical Properties & Datasheets

Property Name Test Method Unit Value
pH (10 % in demineralized water) DIN ISO 976 7.1 ± 0.7
Non-volatile content (1 g, 1 h, 125 °C) DIN EN ISO 3251 % 42 ± 2
Viscosity at 23 °C, (D = approx. 165 s^-1) DIN EN ISO 3219/A.3 mPa*s 200 ± 100

Property Name Test Method Unit Value
OH % on solid DIN 53 240 % approx. 4
Density DIN EN ISO 2811 g/ml approx. 1.06


Technical Data Sheet
Safety Data Sheet
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