Our Waterproof Glue contains polymer copolymers. It can penetrate the rupture and form a waterproof layer on the surface. Strong adhesive force and high temperature resistance, in high temperature summer will not sag or drip. Its use is simple: clean the construction surface, ensure that there is no moisture on the surface, apply the product directly to the construction area with a brush, and wait for 24 hours to dry, during which time do not touch the water. The ingredients of this product are natural and safe, friendly to the human body and the environment, and can be used in crevices, windowsills, toilets, walls and external walls.