Our transparent waterproof glue (10ml) contains acrylic， polyurethane and butyl glue. Before it cures， the invisible water repellent can penetrate into the interior of the material. After curing， it can produce hydrophobicity， regulate surface tension， and crystallize upon contact with water. It can effectively block water leakage cracks， making water droplets float on the surface and thus achieving a waterproof effect. Its usage method is very simple: apply the product directly to the construction area. Clean the construction surface with a brush to ensure that the construction area surface is free of moisture. Wait for 24 hours to dry. A waterproof layer can be formed after curing for a period of time. During this period， do not come into contact with water and form a layer of insoluble waterproof polymer compound with several molecular thicknesses on the surface and inside the structural material. It is a reticular silicone film. This resin film has the advantages of being waterproof， impermeable， moisture-proof， rust-proof and anti-pollution.