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Swellstop

Water Swellable Sealant

Swellstop is a butyl polymer based sealant tape.

Swellstop is a highly versatile, strip-applied waterstop for non-moving concrete joints. Formulated to encapsulate hydrophilic materials into a rubber base, Swellstop creates a controlled, moisture-activated, compression seal. Swellstop’s structural integrity conforms well to the underlying substrate and exhibits self-healing properties when needed. Unlike many traditional clay-based products, Swellstop will not expand to a point at which the waterstop itself is destroyed. In-field experience has proven that products, which continually expand, lose much of the structural integrity and can actually erode when subjected to a constant flow of water. Furthermore, the controlled expansion properties engineered into Swellstop, reduce the internal pressures created in cast-in-place applications which can cause spalling in foundations and wall structures.

Swellstop I 20x25mm 5.08M Roll Swellstop II 10x20mm 7.62M Roll.

Features and Benefits

  • Easy to use
  • Effective expansion properties
  • Reduces the internal pressures created in cast-in-place applications

Applications

  • Swellstop is installed in and along the joint after the first concrete pour and just before the second pour

‍       LIMITATIONS, CONSIDERATIONS AND PRECAUTIONS:

  • Swellstop should be used in below grade, non-moving joints only and is not appropriate for expansion joint applications
  • Cracking and/or spalling of the concrete can be caused by the expansion pressure of Swellstop. A minimum 5cm of concrete coverage is recommended. Increase this coverage if using lightweight or low strength concrete (<3500 PSI compressive strength)
  • Swellstop required the presence of moisture to initiate and maintain expansion. The expansion process begins immediately when Swellstop contacts water
  • Swellstop Primer Adhesive and Swellstop Waterstop should be applied on the same day
  • Inspect Swellstop for premature swell, discontinuity, and debris contamination immediately prior to the 2nd concrete pour. If swelling and/or damage has occurred, remove and replace the material with new
  • Do not remove separation paper from Swellstop until just prior to the 2nd concrete pour
  • Store material in a cool, dark, dry environment

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