Koster Waterstop

Koster Waterstop

Koster Waterstop is a fast curing, expanding plug and repair mortar.

Waterstop can be used to seal water leakages in concrete, masonry and natural stone structures quickly. The material can also be used to form fillets which are subject to pressurised water, to seal slotted walls, manholes, cable and pipe penetrations, and to subsequently seal damaged pipe joints in canal construction even if they are exposed to pressurised water.

Through the fast curing and the slight expansion of the curing mortar, an intensive contact between the existing substrate and the mortar is achieved. This way, even cracks bearing pressurised water and water leakages can be sealed fast.

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  • Application
  • Product Details
  • Specification
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  • Technical Drawings
  • Watertight
  • Fast Setting
  • Slightly expanding
  • Leak Stopping
  • Excellent adhesion
  • Can be applied to all mineral substrates
  • Suitable for watertight repairs to substrates
  • Can be used internally and externally on concrete, brickwork, blockwork or masonry
  • Easy application
  • Seamless application
  • Suitable for new construction and repair on existing structures

Koster Waterstop is the perfect solution for:

  • Repairs to existing substrates
  • Repairs to concrete and screeds
  • Detailing to dry pack joints
  • Construction joint detailing
  • For patch Repairs
  • Filling tie bolt holes in concrete construction
  • Detailing around service penetrations
  • Locking down the structure prior to cavity drain installation
Product Details
Product Code:
15kg bucket
  • J10 Cementitious Mortar Tanking/Damp Proofing 340 Sealants
Technical Drawings

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