Supercast waterstops are extruded from a high grade PVC compound which has been formulated to give excellent flexibility and longevity characteristics. They are available as straight lengths and factory produced intersections or as a factory prefabricated segment of a network to minimise site jointing. The Supercast range of PVC waterstops is designed to provide an integral sealing system for movement and construction joints in concrete cast in-situ.


  • Range of profiles to suit every need
  • Fully continuous 4 bulb network
  • Reinforced eyeletted edge flanges for positive fixing
  • Simple on-site jointing
  • Full range of moulded and fabricated intersection pieces
  • WRC approval for use in contact with potable water
  • Reservoirs, water towers and sewage tanks
  • Dams, culverts, canals and spillways
  • Swimming pools
  • Bunded areas surrounding liquid retaining tanks
  • Basements and underground car parks
  • Tunnels and subways
  • Abutments and retaining walls
  • Roof decks and podium areas