Hydrotite KT Hydrotite KT has a wide range of applications in residential and light commercial building projects where hydrostatic pressures up to 0.1 MPa (10 metre head of water) dictate the use of a standard performance waterstop. View our product here. Hydrotite CJ (for Construction Joints) Hydrotite CJ has been developed as an effective, simple and economical sealing material for site formed construction joints based on the proven effectiveness of Hydrotite. Leakmaster Sealant (for In-situ Concrete Joints) Leakmaster is a one-component swelling waterstop sealant that, like HYDROTITE, expands on contact with water. Consultancy Service (Joint Design) Consultancy service for designing and specifying waterproof joints in large projects. Hydrotite (for Segment Lining Tunnels & Precast Joints) Hydrophilic rubber joint sealing materials (water stops), with excellent long-term durability and good chemical resistance.