This Leakmaster crack sealant is a one component polyurethane water-swelling sealant with excellent and unique physical properties. Its development was based on technology and experience in water-swelling waterstops.
It can be applied to joints, etc., in swimming pools, civil engineering, construction and water services for seals where conventional solid waterstops cannot be applied easily. This includes irregular shaped joints, rough surfaces, odd penetrations, etc.
It has a finished color of gray.