Bentonite Waterstop Material

Superstop is a composite waterstop containing expandable, granular bentonite. One edge is layered with a pressure sensitive adhesive.


  • Superstop is used for sealing cold joints in concrete and to prevent water migration through construction joints below grade
  • Properly installed under compaction, Superstop will stop the passage of water through a static cold joint or between two abutting impermeable surfaces
  • Superstop is also available in saltwater grade for use in approved brackish water conditions