Our transparent waterproof adhesive contains polydimethylsiloxane, 1, 2-hexanediol. It can be used for crack water seepage, windowsill water seepage, toilet waterproof sealant water seepage, wall water seepage, roof water seepage, external wall water seepage. Simply brush the application area to prevent leaks and waterproof various surfaces including tile, brick, concrete, wood, metal, etc. Its use method is very simple: 1. Clean and dry the cracks inside and outside; 2. Apply appropriate amount of glue evenly to the cracks. Wait 24-48 hours for a waterproof layer to form. And can repair seams, cracks, leaks, prevent leaks, simple and convenient.