Our waterproof leak repair coatings contain silicone acrylic emulsion and defoamer. It can penetrate the crack area and form a waterproof layer on the surface. Its use method is very simple: 1. First wear disposable gloves, clean the construction surface, and ensure that the surface is free of moisture. 2. Apply the product directly to the construction area with a brush. 3. Let dry for 24 hours. And can have extremely strong adhesion and high temperature resistance, even in the summer will not melt.