Economic, Thixotropic, Low VOC, Highly Elastomeric, Single-Component, Liquid Polyurethane Membrane

VELOSIT PU 454 is an economic, low VOC, thixotropic, single component, moisture-cured, highly elastic, liquid-applied polyurethane liquid that cures to form a UV resistant, seamless and monolithic waterproofing membrane.  VELOSIT PU 454 is brush, roller or spray applied on concrete, gypsum, cement boards, asphalt membranes, etc.

Once cured, VELOSIT PU 454 creates an elastomeric yet resilient, long lasting coat capable of accommodating movements of the underlying substrate.

Typical applications:

  • Flat slabs, roofs and podium slabs
  • Balconies, bathrooms and toilets
  • Flower boxes
  • Walls
  • Intricate details in important structures
  • Over PU foam


  • Excellent adhesion to most substrates
  • Easily applied without thinning
  • Fast curing allows same day re-coating
  • Highly elastic; above 450 %
  • Excellent mechanical and chemical resistance
  • High abrasion and tear resistance
  • Excellent UV resistance for gray or white color
  • Long pot life
  • Resilient
  • Suitable for exposure where the membrane temperature remains below 60°C, including thick-bed tiled areas, planters and marble covered plazas 
  • 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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