Liquid Applied PU Bituminous Elastomeric Waterproofing Membrane

  • Up to 1000% elongation
  • Excellent adhesion to both green and cured concrete
  • High build and thixotropic
  • Single-component, ready-to-use
  • Solvent-free, no emission of dangerous fumes or vapors
  • Excellent resistance to chlorides, sulphates, mild acids, alkalis, oil, salts, common fuels, etc.

CHEMFLEX RBE is a single component, high build, thixotropic, emulsified bitumen modified with PU pre-polymers and synthetic rubber copolymer of neoprene type. The fusion of PU pre-polymer and neoprene rubber bitumen imparts special properties to the emulsion such as better elongation, recovery and cold flexibility.

Technical & Physical Properties

Appearance Dark black, greyish gel
Color Black when dry
Density 1.05 + 0.05
Solids Content 65% by weight
pH >9.0
Viscosity @ 20°C Min. 100 cps
Softening Point (ASTM D 36) > 120°C
Service Temperature -20°C to 115°C
Application Temperature 10°C to 45°C
Elongation @ Break (ASTM D 412) > 1000 %
Water/Damp Permeability (ASTM D 96) 0.06 g/m2/24 hours
Heat Resistance (ASTM D 1227) 2 hours, 100°C, no flow, blistering or sagging
Adhesion to Concrete 0.50 N/mm2
Touch Dry 4-8 hours depending on membrane thickness, temperature, humidity and wind conditions
Full Cure 7 days
2021 Chemflex RBE