• Coatings, paints & inks

Bayhydrol® UH 240

Aliphatic anionic polyester polyurethane dispersion.As a combination binder in the formulation of highly flexible, air- and force-drying primers and one-coat finishes for use on plastics.

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Product Types

  • Dispersion
  • Non-reactive system
  • Polyurethane
  • Waterbased dispersion
  • PU dispersion - high molecular
  • PU dispersion


Coatings, paints & inks
Low viscous, Solvent-free, Easy mixing, Flexible, Elastic, Waterborne

General Characterization

Aliphatic anionic polyester polyurethane dispersion.
As a combination binder in the formulation of highly flexible, water-thinnable, air- and force-drying primers and one-coat finishes for use on plastics.

Storage Conditions

- Storage in original sealed Covestro containers.

Recommended storage temperature: 5 - 40 °C.

Protect from frost, heat and foreign material.

General information: An increase in viscosity may occur during storage. If the containers are not sealed properly, the evaporation of water will result in the formation of a film which cannot be redispersed. 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.


No data available

Packaging Type

No data available

Technical Properties & Datasheets


Property Name Test Method Unit Value
Density at 20 °C DIN EN ISO 2811-2 g/ml approx. 1.1
Minimum film forming temperature (MFT) DIN ISO 2115 °C < 0
Acid value DIN EN ISO 2114 mg KOH/g approx. 0.5
Appearance milky, cloudy


Property Name Test Method Unit Value
Viscosity at 23 °C,(D = 40 s^-1) DIN EN ISO 3219/A.3 mPa∙s < 150
Non-volatile content (1 g/1 h 125 °C) DIN EN ISO 3251 % 39 - 41
pH DIN ISO 976 6 - 8
Mean particle size photon correlation spectroscopy nm max. 210


Technical Data Sheet
Safety Data Sheet
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