Baybond® PU 403

Baybond PU 403 is a solvent free, polyurethane dispersion (PUD) in water.

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Product Types

  • Dispersion
  • Crosslinkers
  • Waterbased dispersion
  • PU dispersion
  • Glass fiber sizing dispersion


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General Characterization

Baybond PU 403 is an anionic/non-ionic crosslinking polyester urethane polymer.
It is used as the film-forming component in glass fiber sizes.

Storage Conditions

Baybond PU 403 should be stored in tightly sealed original containers and protected from freezing, heat, and foreign materials. The product cannot be used if it has been frozen. Recommended storage temperature is 5º-30ºC.


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Packaging Type

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Technical Properties & Datasheets

Property Name Test Method Unit Value
Particle size distribution Dv 0.9 µm ≤ 0.5
Non-volatile content (0.9-1.1g/1h/125^oC, convection oven) % 38.0 - 40.0
Particle size distribution Dv 0.5 µm ≤ 0.3
Flow time at 23ºC, 4 mm cup s 11.0 - 18.0
pH value at 20^oC (supply form) 6.0 - 8.0

Property Name Test Method Unit Value
Average particle size nm 200 - 400
Density at 20°C g/ml approx. 1.0
Elongation at break % 1,000
Tensile strength N/mm² 38
100% Modulus N/mm² 3.4
Tg -47


Technical Data Sheet
Safety Data Sheet
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