Tremco Water Stop

Bentonite Based, Expanding, Hydrophilic Water stop for Construction Joints

Tremco Water-Stop is a composite water stop comprised of expandable, granular bentonite. When water comes into direct contact with Tremco Water-Stop, the bentonite clay expands to form an impenetrable barrier which creates a gasket and mitigates further water ingress. One edge is layered with a pressure sensitive adhesive to aid the installer with quick and easy installation on-site.


  • Concrete construction joints above and below grade

Features & Benefits

  • Pressure sensitive adhesive helps with rapid installation on-site.
  • No frequently asked questions for this product