Jaysuing Concrete Crack Waterproof Sealant, Specially Designed For Cement Floors, Tile Joints Leakage Repair, High Toughness And Weather Resistance, Waterproof And Anti-Leakage, Also Wear-Resistant. Strong Bonding, Dense Filling Without Shrinkage Or Cracking, Suitable For Indoor/Outdoor Wall Corners, Patio Floors, Kitchen And Bathroom Tile Joints, Rooftop Terraces. Self-Leveling And Easy To Apply, No Complex Tools Needed, Can Be Operated By Hand, Durable Against Foot Traffic And Weather After Curing, Permanently Seals Gaps To Prevent Water Leakage, A Must-Have Home Repair Item.