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PolyPaste is a high quality, one component polyurethane adhesive which swells in contact with water. Upon contact with water, the paste can expand up to 450% of its original volume and creates a positive pressure against the faces of the concrete joint, thus preventing the passage of water.


  • Filling in and repairing cracks

  • Construction joints

  • Can be used as an adhesive for bonding SwellPro strips or as a problem-solving hydrophilic waterstop in difficult access areas including:

  • Sealing around joints in precast manhole covers, cable ducts and pipes, etc

  • Sealing around precast segments

  • Sealing between rough surfaces, e.g. slurry walls and concrete slabs

  • Sealing around H-beams and other penetrations through concrete structures

  • Sealing around conventional rubber and plastic waterstops to provide ‘belt and braces’ seal prior to concrete pour


  • High quality, water swellable one component polyurethane adhesive

  • Excellent seal on rough concrete

  • Gives improved water tightness

  • Plugs inequalities in rough concrete to produce a tight seal

  • Excellent adhesion

  • Quick and easy to apply to a variety of uneven joint surfaces remaining firmly in place during concrete pour

  • Expands by 450% producing a watertight compression seal

  • Excellent wet/dry cycling retaining elastomeric character and swelling performance due to high tolerance of the cementitious environment


Watch​ our full application video or download our Technical Data Sheet for this product.

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