Koster Waterstop – Fast Waterproof fillets and plugs 15kg

: £82.50
£78.55 £94.26

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Koster Waterstop is a super fast acting repair mortar for forming waterproof fillets and plugs in basements.

Koster Waterstop is used to quickly seal areas of water ingress before the application of tanking slurries such as Koster NB1 Grey.

Koster Waterstop is often used to create waterproof fillets at wall floor junctions and to fill in voids in basement retaining walls.