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  • Coatings, paints & inks

Bayhydrol® UV 2689/2

Bayhydrol UV 2689/2 is an anionic, UV-curable polyurethane dispersion. Bayhydrol UV 2689/2 is used in the formulation of industrial waterborne UV clear and pigmented coatings. Main applications are plastic coatings (e.g mobile phones) and wood coatings. Before UV curing the surface of dried films is soft and slightly tacky. After UV-cure the coatings are hard with high chemical and mechanical resistance. The product is suitable to achieve high gloss coatings.

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About

Product Types

  • Dispersion
  • UV-curing dispersion
  • Polyurethane
  • Waterbased dispersion
  • Reactive system

Material

Coatings, paints & inks
High functional, Waterborne

General Characterization

Bayhydrol UV 2689/2 is an anionic, UV-curable polyurethane dispersion.
Bayhydrol UV 2689/2 is used in the formulation of industrial waterborne UV clear and pigmented coatings. Main applications are plastic coatings (e.g mobile phones) and wood coatings.
Before UV curing the surface of dried films is soft and slightly tacky. After UV-cure the coatings are hard with high chemical and mechanical resistance. The product is suitable to achieve high gloss coatings.

Storage Conditions

Bayhydrol UV 2689/2 should be stored in tightly sealed original containers and protected from intense radiation (light, UV), freezing, heat, and foreign materials. The product is sensitive to freezing. Freezing will damage the product irreversibly. Prolonged storage at higher temperatures may result in an increase of average particle size, risk of sedimentation, risk of pH-drift and ultimately coagulation. Recommended storage temperature is 5º-30ºC.

Sampling

No data available

Packaging Type

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Technical Properties & Datasheets

Characteristics

Property Name Test Method Unit Value
Double rubs ethanol (50) Unchanged
Double rubs petrol (50) Unchanged
Pendulum hardness s 190
Pencil hardness H < 1
Double rubs acetone (10) Unchanged

Specifications

Property Name Test Method Unit Value
pH 7.0 - 8.5
Non-volatile content (1g / 1h / 125^oC,convection oven) % by weight 40.0 - 44.0
Viscosity D=40s^-1 mPa∙s < 1,000

Downloads

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

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