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  • Coatings

Bayhydrol® A 145

Water-reducible, hydroxyfunctional polyacrylic dispersion. In combination with aliphatic polyisocyanates to formulate aqueous two-component clear- and topcoats.

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About

Product Types

  • Dispersion
  • Acrylate dispersion

Material

Coatings
Hard, Waterborne, Flexible, Elastic

General Characterization

Water-reducible, hydroxyfunctional polyacrylic dispersion.
In combination with aliphatic polyisocyanates to formulate aqueous two-component clear- and topcoats for vehicle repair applications, heavy transport finishing and industrial coating.
In combination with amino resins or blocked polyisocyanates for waterborne, one-component, industrial baking coatings.

Storage Conditions

- Storage in original sealed Covestro container.

- Recommended storage temperature: > 0 - 30 °C.

- Protect from frost, heat and foreign material.

General information: Short-time cooling down to -18 °C does not typically damage the product, but the viscosity may increase significantly. Prolonged freezing can damage the product irreversibly.
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 restored to its original value by the addition of small amounts of an aqueous 10 % solution of dimethylethanolamine. 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.

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/convection oven) DIN EN ISO 3251 % 45 ± 2
pH (thinned 1 : 4 with demineralized water) DIN ISO 976 8.0 ± 0.5
Viscosity at 23 °C, D = 41,28 s-1 DIN EN ISO 3219/A.3 mPa*s 950 ± 550
Acid value DIN EN ISO 2114 mg KOH/g 10 ± 3

Property Name Test Method Unit Value
Density at 20 °C DIN EN ISO 2811-2 g/ml approx. 1.06
Flash point DIN EN ISO 1523 °C approx. 53
OH content (calculated on solid resin) % approx. 3.3

Downloads

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