P235 Polyurethane Sealant Construction

Description

Construction PU Sealant is a one-component, low-modulus polyurethane sealant that cures on exposure to atmospheric humidity. It possesses excellent adhesion to all typical construction materials such as cement based materials, brick, ceramic, glass, wood, galvanized and painted sheet iron and various plastics.

  • Expansion joints between many different construction materials.
  • Movement and connection joints in floors.
  • Indoor and outdoor applications for pedestrian and traffic areas.
  • Joints between prefabricated construction materials.
  • Sealing and bonding of ventilation ducts, gutters and spouts etc.
  • For expansion joints between pre-cast concrete panels.
  • Possesses permanent elasticity.
  • 25 % movement capability.
  • No surface tackiness after full cure.
  • Do not pick up dirt.
  • No shrinkage.
  • Cures bubble-free.
  • Enhanced storage stability.
  • No sagging – Thixotropic.
  • Can be applied with hand gun and tooled easily.
  • Paintable.
Technical Properties
BEFORE CURING
BasisPolyurethane
ConsistencyThixotropic
Curing MechanismMoisture Curing
Density1,20±0,03 g/ml
Tack free time20-70 min. (23°C and 50% R.H)
Curing RateMin. 2,5 mm/day (23°C and 50% R.H)
Sagging0 mm(EN ISO 7390)
Temperature Resistance-40°C to +90°C
Application Temperature+5°C to +40°C
AFTER CURING
Hardness Shore A35-40After 28 days (ASTM C661)
PaintibilityYes *
Elastic Recovery≥ 70%(ISO 7389)
GLASS GLASS
Elongation at breakMin. 100%(ISO8339)
E100 Modulus (23 ⁰C)0.35-0.40 N/mm2(ISO8339)
E100 Modulus (-20 ⁰C)≤ 0,60 N/mm2(ISO8339)
DUMBLE TEST
Elongation at break≥%600(ASTM D412)
Tensile Strength1.5-2.0 N/mm2(ASTM D412)
TypeVolume Box
White310 ml12
Black310 ml12
Grey310 ml12
Agate Grey310 ml12
Signal Brown310 ml12
White600 ml12
Black600 ml12
Grey600 ml12
Agate Grey600 ml12
Signal Brown600 ml12
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