• Coatings

Bayhydrol® A 2601

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

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Product Types

  • Dispersion
  • Acrylate dispersion


Fast curing, Flexible, Elastic, Hard, Waterborne

General Characterization

Bayhydrol A 2601 is water-reducible, hydroxyfunctional polyacrylate dispersion.
It can be used in combination with aliphatic polyisocyanates for the formulation of waterborne two-component clearcoats and topcoats for general industrial and transportation coatings. It can also be used in combination with suitable melamine resins for the formulation of one-component coatings.

Storage Conditions

Bayhydrol A 2601 should be stored in tightly sealed original containers and protected from freezing, heat, and foreign materials. Short-time cooling down to -18°C does not typically damage the product. 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 dimethyl ethanol amine.
Recommended storage temperature is greater than 0ºC-30ºC.


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Packaging Type

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Technical Properties & Datasheets


Property Name Test Method Unit Value
pH (1:4 in demineralized water) 7.0 - 8.0
Viscosity at 23°CD= approx. 40s^-1 mPa∙s 1,500 - 3,000
Non-volatile content (1g/1 ml toluene/1h/125°C) % 44 - 47


Property Name Test Method Unit Value
Acid number (supply form) mg KOH/g approx. 10
Density at 20°C g/ml approx. 1.06
Equivalent weight (supply form) approx. 969
Hydroxyl content (on solid resin, calculated) % approx. 3.9


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