Product details of 750ml Waterproof Leak Seal Repair Spray Cracks Leakage Mending Glue Stop Leaking Sealer Seaming Sprayer -It is anti-corrosion and anti-rust so the seal will last longer -Small measure will help to solve major leakage problems -Developed for waterproofing repair of pipe roots, pipe openings, corners, roof cracks, slotted wiring and other leaky points in waterproofing construction -Sprayer can reach complex space and narrow cracks to solve the leakage problems easily.