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TamSeal R


TamSeal R is a hydrophilic rubber water stop that has been developed for water stopping function in construction and civil engineering application, which cause inevitable leaking all the time.  TamSeal R is capable of sealing heads of water up to 50 metres and is widely used to seal horizontal and vertical construction joints for poured in-situ concrete. It is treated with a delay coating thus preventing it from premature expansion.

As with any hydrophilic water stop, TamSeal R will return to its original size if the concrete and substrate are completely dry. If water or moisture is introduced again to the joints, TamSeal R will then re-expand to seal the potential leaking joints. It has been tested in numerous wet and dry cycle conditions.

Easy to apply

Key specification

  • Hydrophilic rubber water stop for concrete joints

Key benefits

  • High swelling > 200%
  • Easy to apply
  • Non-toxic
  • Swells even in saline conditions

Typical applications

  • Poured in-situ construction joints
  • Box culverts
  • Cut & cover tunnel construction
  • Dam construction
  • Underground (utility) vault seal
  • New to old concrete
  • Manholes
  • Pipe penetrations (concrete, PVC, etc.)


TamSeal R

TamSeal R Technical Data Sheet - Asia Version

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