Hydrotite Hydrophilic Waterstop

Hydrotite is the brand name for a state of the art hydrophilic waterstop with unmatched durability and water sealing capacity. Hydrotite expands as it absorbs water and fills up concrete joint gaps conforming to the gap variation, ensuring excellent sealing.


Hydrotite Hydrophilic Waterstop consists of a unique combination of expanding hydrophilic materials and non-expanding chloroprene rubber, co-extruded together to form a single strip. The expanding section is blue with the non-expanding section being black. The co-extruded design means that the expansion is directed across the joint for maximum sealing performance. This expansion creates an effective compression seal within the joint, preventing the egress of water through it. Upon expansion, Hydrotite turns from a dark blue colour to a light blue colour, so that a visual inspection of the Hydrotite can be made and so the contractor can see if the Hydrotite has pre-expanded.

Advantages of Hydrotite Hydrophilic Waterstop:

  • Easy to handle and install
  • Excellent adhesion to concrete surfaces
  • Outstanding physical properties
  • Profiles with self-adhesive backing allow for simple and fast installation processes
  • Co-extruded design means expansion is directed across the joint for maximum seal
  • Capable of sealing heads of water up to 50 metres
  • Unaffected by repeated wet and dry cycles
  • No site welding is required for joining processes
  • Has a delay coating to help prevent premature expansion
  • Changes colour as a visual alert to let you know it has expanded
  • No need for special intersections, joining is by simple butt joins
  • Can be applied to rough surfaces using Leakmaster gun grade waterstop
  • Can be joined to traditional PVC waterstop. Refer Rockbond for further information
  • No compaction or displacement problems
  • Non-toxic and non-hazardous. NSF certified
  • No need for split forming

Areas of application:

  • Sewerage Treatment Plants
  • Water Treatment Plants
  • Resevoirs
  • Water Tanks
  • Swimming Pools
  • Tunnels
  • Subway Stations
  • Basements
  • Pits
  • Pipe Penetrations