Our waterproof glue contains hardener, polyurethane, epoxy resin. It can repair cracked surfaces, solve water leakage problems, and has sealing properties. Its use method is very simple: 1. Squeeze the waterproof glue on the wall on the surface of the workpiece such as tiles, and evenly apply it with a brush. 2. Wait 5-10 minutes. The nozzle design makes it more convenient and efficient to use, spraying evenly everywhere. Waterproof adhesive with multi-functional sealing, leak-proof function, can repair pipes, external walls and other places, wide range of use.