Description:

SWELLSEAL Mastic is a one-component, polyurethane-based, solvent free, hydroswelling mastic, supplied in cartridges and aluminium sausages, for the sealing of construction joints and around pipe penetrations.

SWELLSEAL Mastic cures and swells in the presence of moisture. Curing time depends on temperature and humidity conditions, i.e. curing time will reduce if RH and Celsius degrees are higher.

SWELLSEAL Mastic will become firm in 24-36 hours. Performance is not affected by the curing time.

Uses:

• Sealing rough and smooth construction joints of in-situ cast concrete.
• Sealing joints between pre-cast segments (e.g. manholes, box culverts, cable ducts and pipes).
• Sealing around steel H-beams.
• Sealing between rough surfaces (e.g. slurry walls) and concrete slabs.
• Bonding strip sealants to rough surfaces.
• Sealing around bolt spacers and void formers.
• On secant pile walls.

Advantages:

• Solvent free.
• SWELLSEAL Mastic can be applied to concrete, PVC, ® HDPE, steel, etc.
• The excellent filling and adhesion properties of the product provide a first line filling of cracks and voids, even on lightly humid, smooth or rough surfaces.
• In contact with water SWELLSEAL ® Mastic will expand to about 350% of it’s original volume.
• Flexible system, which adapts to the irregular surface of the substrate.
• Easy application with standard caulking gun.
• Durable: will exceed the construction’s life.
• Has a good all-round chemical resistance(*) and can resist petroleum, mineral and vegetable oils and greases.
• SWELLSEAL ® Mastic is approved for contact with potable water.