SwellMAX Waterstop


  • Independently tested for use up to 7 Bar of water pressure
  • Suitable for use in non-movement construction joints in-situ in reinforced concrete
  • Suitable for vertical and horiztonal applications
  • No sticky protection tape to be removed prior to use
  • May be installed using adhesive of fixing rail
  • Up to 500% swelling capacity
  • WRAS Approved – Can be used in contact with potable water
  • Reversible expansion process
  • Indefinite shrinking and swelling process, even decades after installation
SwellMAX Waterstop PLUS
SwellMAX Waterstop 326.29

Free worldwide shipping on all orders over €850

  • 30 days easy returns
  • Order yours before 11.59 am for same day dispatch

SwellMax Waterstop is a waterbar made from bentonite which is activated by the alkaline in fresh concrete. It reacts with water and swells to prevent water ingress through the joints in reinforced concrete structures. Ideal for use in vertical and horizontal joints in precast concrete wall panels, shield-driven tunnels, such as subways, water supply and sewage systems and concrete slabs in basements.