Triton TT Waterstop Waterbar (5M)

Preformed swelling waterstop / waterbar for sealing non-movement construction joints in concrete. Made from a sodium bentonite and butyl rubber-based material, it expands when in contact with water to help form a watertight seal within poured concrete joints and below-ground waterproofing applications. Supplied as a 5m roll, 25mm x 20mm.