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  • Coatings

Bayhydur® BL 2781

Water-thinnable, aliphatic, blocked polyisocyanate In combination with Bayhydrol® polyols in the formulation of water-thinnable, lightfast, one-component polyurethane stoving coatings. Also as an additive to improve the flexibility, impact strength and adhesion of conventional aqueous stoving systems. Bayhydur® BL 2781 is a further development of Bayhydur® VP LS 2310 without cosolvent.

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About

Product Types

  • PIC
  • Crosslinkers
  • Hardeners
  • Aliphatic polyisocyanate
  • Hydrophilic polyisocyanate
  • Isocyanate
  • Polyisocyanurate
  • Polyisocyanate

Material

Coatings
Thermally resistant, Solvent-free, Waterborne, Flexible, Elastic

General Characterization

Water-thinnable, aliphatic, blocked polyisocyanate
In combination with Bayhydrol® polyols in the formulation of water-thinnable, lightfast, one-component polyurethane stoving coatings. Also as an additive to improve the flexibility, impact strength and adhesion of conventional aqueous stoving systems.
Bayhydur® BL 2781 is a further development of Bayhydur® VP LS 2310.

Storage Conditions

No data available

Sampling

No data available

Packaging Type

No data available

Technical Properties & Datasheets

Property Name Test Method Unit Value
Non-volatile content (1 g/1 h/105 °C) DIN EN ISO 3251 % 35.0 - 38.0
Viscosity at 23 °C, D = 10 s-1 DIN EN ISO 3219/A.3 mPa*s 800 - 9,000
pH (10% solid content in demineralized water, 20°C) DIN ISO 976 8.0 - 10.0

Property Name Test Method Unit Value
Appearance yellowish to reddish, clear to cloudy
Blocked NCO content, theoretical % approx. 3.5
Equivalent weight approx. 1,200
Density at 20 °C DIN EN ISO 2811 g/cm3 approx. 1.06

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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