TamSeal BR

TamSeal BR is a pre-formed adhesive hydrophilic waterstop designed to swell up to 200% in the presence of water, providing a watertight seal in cold joints on concrete structures. This highly advanced product is made up of butyl rubber, polypropylene elastomer, hydrophilic fillers and plasticizers, providing a more uniform and controlled volumetric expansion upon contact with water. TamSeal BR is self-adhesive and bonds to a wide variety of substrates. Its ability to swell allows it to penetrate into poorly consolidated concrete surfaces.

Key Benefits
  • Easy to use
  • Swells into unconsolidated concrete surfaces upon contact with water
  • Eliminates split forming, wiring to rebar, heat welding of splices.
  • Remains flexible in cold weather
  • Excellent chemical resistance
Typical Applications
  • Residential and commercial basements
  • Secondary containment structures
  • Highway tunnels
  • Concrete lined storm drainage and irrigation channels
  • Tunnels and underground structures
  • Wastewater treatment plants and water theme parks