Polyurethane Waterpoofing

Liquid Applied Single Component Elastomeric Polyurethane Waterproofing Membrane


„ One component; ready to apply direct from the can
„ Liquid application means details are simplified and there are no joints in the membrane
„ Highly elastic, cures to give a permanently flexible resilient barrier over a wide range of temperatures
„ Rapid installation; significantly reduces time spent on preparatory works and detailing
„ Excellent adhesion, can be applied to a wide range of substrates. Continuous adhesion prevents lateral migration of water
„ Impervious - outstanding barrier properties ensure protection against corrosive soil conditions
„ Thermally stable - irreversible chemical cure eliminates melting and flow at high temperature
„ Excellent resistance to oxidation and embrittlement
„ Mechanical damage to the membrane can be easily repaired by spot application

Polyurethane Waterproof Coating

Tack free time @ 25°C 15 hours
Time to full cure @ 25°C 48 hours @ 1.3mm thickness
Typical cured membrane properties (at 28 days)
Elongation (ASTM D412) 620 %
Tensile strength (ASTM D412) 1.5 N/mm2
Modulus @ 100% elongation (ASTM D412) 0.62 N/mm2
Recovery from 200% elongation (ASTM D412) 95 %
Tear resistance (ASTM D624) 15 N
Water vapour transmission for 1.3mm film
 (ASTM E96)
9.7 g/m2 /24 hrs.
Artificial weathering No loss of flexibility after 4000 hours exposure
Extensibility after heat aging (min. requirement - extended to 6.4mm without cracking) No cracking or tearing
Service temperature (continuous ambient) -40°C to 70°C