Waterproof Insulation SealantEfficient and leak-proof. It's a revolutionary water and rubber based formula that penetrates joints, cracks and leaks and seals any cracked surfaces. At the same time, a waterproof protective layer is formed in the adjacent area. Excellent QualityMade of high-quality materials, friendly to the human body and the environment, non-toxic. It has been tested and approved, and it lasts a long time. It does not harm humans or surfaces. Super Strong Invisible Waterproof Anti-Leakage AgentOur Waterproof Anti-Leakage Agent will not sag or drip in the summer heat. Plus, the Waterproof Insulating Sealant won't crack or peel in cold winters. Helps save time, money and effort by ensuring long-term protection after use. It can be used to penetrate cracks, window frames, toilets, walls, exterior walls. Wide ApplicationsJaysuing Invisible Waterproof Agent suitable for waterproof constructions of cement surfaces, metal, ceramic tile, marble, wood, plastic, and other surfaces. Widely used in toilet gaps, ceramic tile gaps, windowsills, balconies, exterior walls, ground, bathroom, kitchen, roof, etc. Easy to UseBrush the product directly on the surface of ceramic tile, floor tile, wall tile cement, etc. Wait for the product to penetrate into the base course. After a few minutes, when there is no liquid on the surface, brush twice or three times to enhance the effect. The waterproof layer can be formed after curing for 24- 48 hours, and the waterproof layer will be stronger with the time delay.