Elastomeric, Moisture-Cured, Single-Component, Liquid Polyurethane Membrane

VELOSIT PU 453 is a single component, moisture-cured, high performance, liquid-applied polyurethane liquid that cures to form a UV resistant, seamless and monolithic waterproofing membrane. VELOSIT PU 453 is brush, roller or spray applied on concrete, gypsum, cement boards, asphalt membranes, etc.

Once cured, VELOSIT PU 453 creates an elastomeric yet resilient, long lasting coat capable of accommodating movements of the underlying substrate. VELOSIT PU 453 is designed to give a minimum 25 year service life (W3) in severe (S3) temperature zones in accordance with EOTA Guidelines.

Typical applications:

  • Flat slabs, roofs and podium slabs
  • Balconies, bathrooms and kitchens
  • Asphalt membranes
  • Parking structures and bridge decks
  • Stadiums


  • Excellent adhesion to most substrates
  • Easily applied without thinning
  • Fast curing allows same day re-coating
  • High elongation; above 825 %
  • Excellent mechanical and chemical resistance
  • High abrasion and tear resistance
  • Excellent UV resistance on gray and white colors
  • Long pot life
  • Resilient
  • Does not soften at elevated temperatures (up to + 80 °C)
  • Capable of withstanding thermal shocks (up to + 190 °C)
  • Remains elastic even at sub-zero temperatures (down to - 35 °C)


Here you can find detailed information about the selected VELOSIT product.

Technical Data Sheet Safety Data Sheet

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