Strip applied hydrophilic swelling rubber


Waterstop-Strip is a strip applied hydrophilic rubber swelling waterstop for use in all kinds of cast-in-place concrete construction joints, as well as steel, concrete and thick-walled PVC (minimum 1/8”) pipe penetrations. When exposed to water, the rubber expands, creating a compression seal within the joint or pipe penetration, blocking the passage of water.

Typical Applications:

  • Vertical and horizontal cast-in-place concrete joints where limited or no movement is expected.
  • Around through-wall pipe penetrations.
  • Ideal for new concrete structures or between new and existing concrete.


  • Easy to use
  • Rapid expansion
  • Dimensionally stable, even at high temperatures
  • Reproducable swell after wet/dry cycling
  • Suitable for fresh and salt water
  • Contains no bentonite

CSI Divisions:

  • Concrete Accessories (03 15 00)
  • Cast-in-Place Concrete (03 30 00)
  • Division 3 - Concrete (03 00 00)

Complementary Products:

Item numberPackaging
5C13-040R5 x 131 ft
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