Bayhydrol® U 241

Polyester polyurethane dispersion neutralised with dimethyl ethanol amine. Used in the formulation of stoving industrial coatings, stoving automotive primer surfacers and two-pack polyurethane primers and top coats for plastics.

Details

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Chemical Composition

Polyester polyurethane resin

Advantages
  • resistance to hydrolysis
  • good pigment wetting
  • high shear stability
Other Applications

stoving industrial coatings
stoving automotive primer surfacers
two-pack polyurethane primers
top coats for plastics

Handling

Can be combined with partially methylated melamine resins to formulate water-thinnable stoving coatings and primers.

Technical data

Quantity Value Unit Comment
Appearance Properties
Physical state Dysprzhn
Physical Properties
Density 1.1 g/ml 20°C
pH 7.8 - 8.8 1:3 in deionised water
Viscosity 500 - 1500 cP 23°C- mPa.s
Particle size 50 nm
Minimum Film Forming Temperature ºC
Thermal Properties
flash point >100 ºC
Chemical Properties
Acidity number 6.5 - 8.5 mg KOH/g
Non-volatile materials 40 - 42 % wt

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