One-part Polyurethane Joint Sealant

  • Highly resilient with excellent recovery
  • Provides permanent and uniform watertight seal
  • Excellent adhesion to most building
  • Weather resistant
  • Non-biodegradable
  • Non-toxic once cured. Can be used in potable water reservoirs and swimming pools
  • Easy to apply, no mixing required
  • Over painting can be done with dispersion based paint (acrylic, vinyl)

POLYSEAL 1PUA is a one-part low modulus high performance polyurethane sealant, which cures on adsorption of atmospheric moisture to form a firm and flexible rubber watertight seal for moderate and control joint. POLYSEAL 1PUA can be used in both horizontal and vertical applications.

Technical Specification

Properties Values
Colour White/Black/Grey
Density(g/cc) 1.3 ± 0.05
Viscosity Thixotropic Paste
Shrinkage <5
Butt Joints ±25
Lap Joints ± 50
Shore A Hardness 20-35
Adhesion to Concrete, (N) >25
Elongation, (%) >250
Chemical Resistance pH 2.5 to 11.5, sea water
Skinning time @ 25 °C & 50% RH (hrs) 24
Full cure @ 25 °C & 50% RH (d) 7
Application Temperature, (°C) +5 to +40
Service Temperature, (°C) 40 to +80
Polyseal 1PUA