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  • Coatings

Bayhydrol® A 2845

OH-functional PAC combinable with aliphatic PIC for 2K-PU clear/topcoats for automotive OEM coatings and plastics. 1K coatings by using melamine resins also possible.

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About

Product Types

  • Dispersion
  • Acrylate dispersion

Material

Coatings
Hard, Thermally resistant, Waterborne, Flexible, Elastic

General Characterization

Water-reducible, hydroxyfunctional polyacrylate dispersion.
In combination with aliphatic polyisocyanates for the formulation of waterborne two-component clearcoats and topcoats for automotive OEM coatings and coatings for plastics.
Can also be used in combination with suitable melamine resins for the formulation of one-component coatings.

Storage Conditions

- Storage in original sealed Covestro container.

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Recommended storage temperature: > 0 - 23 °C.

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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.

Sampling

No data available

Packaging Type

No data available

Technical Properties & Datasheets

Property Name Test Method Unit Value
pH-value (1:4 in demineralised water) DIN ISO 976 8 - 9
Non-volatile content (1g/1h/125 °C/convection oven) DIN EN ISO 3251 % 38 - 41
Viscosity at 23 °C, D = approx. 40 s-1 DIN EN ISO 3219/A.3 mPa*s ≤ 3,000

Property Name Test Method Unit Value
Density at 20 °C DIN EN ISO 2811 g/ml 1.05
OH content (calculated on solid resin) % approx. 4.5
Acid value (on solid resin) DIN EN ISO 2114 mg KOH/g approx. 26

Downloads

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