① One component polyurethane waterproof coating (wet curing polyurethane waterproof coating) is a waterproof coating of reactive wet curing film.
When used, it is coated with a waterproof base, which is cured and crosslinked into a tough, soft and seamless rubber waterproof film by reacting with moisture in the air.
② High-strength polyurethane waterproof coating is a kind of two-component reaction curing the waterproof coating.
Among them, group A is the isocyanate-sealed prepolymer obtained by polyether and isocyanate polycondensation, and group B is a colored liquid composed of plasticizer, hardener, thickener, coagulant, and filler. When used, the two components of A and B are mixed evenly in proportion, coated on the surface of the waterproof base, and often crosslinked to form a kind of rubber elastic film with high elasticity, high strength, and durability, so as to play a waterproof role.