KEMA MASTIC is a one-component, white coloured, polyurethane based, solvent free, hydro swelling mastic, which cures and swells in the presence of moisture. In contact with water it will expand to approximately 350 % of its original volume. It is designed for sealing rough and smooth construction joints and pipe penetrations, for sealing around steel H-beams, for sealing between rough surfaces (e.g. slurry walls) and concrete slabs, for binding strip sealants to rough surface. It can be applied to concrete, PVC, HDPE, steel, etc.

FEATURES:

• Flexible system, which adapts to the irregular surface of the substrate
• Easy application with standard caulking gun
• Has a good all-round chemicals resistance and can resist to petroleum, mineral and vegetables oils and greases
• It is approved for contact with potable water
• It doesn’t dissolve in water
• Durable: will exceed the construction’s life.