The polyurethane waterproof coating is an isocyanate group-containing prepolymer which is formed by addition polymerization of isocyanate, polyether, etc., and is prepared by a process such as mixing with a catalyst, an anhydrous auxiliary agent, a water-free filler, a solvent, and the like. One-component polyurethane waterproof coating.
This type of coating is a reaction-curing (moisture-curing) coating with high strength, high elongation, and good water resistance. Strong adaptability to deformation of the base layer. Polyurethane waterproof coating is a one-component environmentally friendly waterproof coating for liquid construction. It is based on imported polyurethane prepolymer and has no additives such as tar and asphalt. It is cured by contact with moisture in the air, forming a strong, tough, seamless, integral film on the surface of the substrate.
The original waterproof material was tar pitch and petroleum blue paper tire felt, which originated in Europe and was introduced to China in the 1920s. With the advancement of technology, modern waterproof materials have developed rapidly. By the 1970s, various polymer waterproof materials were introduced. At present, China's waterproof materials have gradually formed three series of coils, coatings and sealing materials.
The synthetic polymer waterproof material is a waterproof coating material prepared by adding synthetic rubber or contract resin as a main film-forming substance and adding other auxiliary materials. Synthetic molecular waterproofing materials are available in a variety of brands, such as polyurethanes, acrylics, and mixtures thereof.
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