• Coatings

Bayhydrol® UH 2558

Aliphatic, anionic polyurethane dispersion.Binder for the formulation of water-reducible coatings and sealers.

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Product Types

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


Elastic, Solvent-free, Waterborne, Flexible

General Characterization

Aliphatic, anionic polyurethane dispersion.
Binder for the formulation of water-reducible coatings and sealers.

Storage Conditions

- Storage in original sealed Covestro containers.

Recommended storage temperature: > 0 - 30 °C.

Protect from frost, heat and foreign material.

General information: The product is sensitive to frost. 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.
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
Non-volatile content (1 g/1 h/125 °C) DIN EN ISO 3251 % 35 - 39
Efflux time at 23 °C, 4 mm cup AFAM 2008/10503 s max. 40
pH DIN ISO 976 7 - 9

Property Name Test Method Unit Value
Density at 20 °C DIN EN ISO 2811-2 g/ml approx. 1.05
Mean particle size photon correlation spectroscopy nm approx. 60


Technical Data Sheet
Safety Data Sheet
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