Polyurethane polyurethane waterproof coating can be divided into two kinds of single-component and two-component. One-component polyurethane waterproof coating, also known as moisture-curing polyurethane waterproof coating, is a reactive type of wet cured film of waterproof coating. When using coated in waterproof grass roots, and moisture in the air through the curing reaction cross-linked into a tough, soft and seamless rubber waterproofing membrane. High-strength polyurethane waterproof coating is a two-component reaction curing type waterproof coating. Group A points which is condensed from polyether and isocyanate obtained isocyanate terminated prepolymer, Part B is composed of a plasticizer, curing agents, thickeners, coagulants, fillers colored liquid composition. The two components A and B in proportion to the use of mixed polyurethane waterproof coating, brushing waterproof coating on the surface of base price of water, often crosslinking temperature to form a rich high flexibility, high strength and durability of rubber elastic membrane, which in turn has to waterproof. Construction waterproof coating preparation 1, carefully check grassroots waterproof coating waterproof layer, seriously defective and clean. (1) primary should be flat, smooth, sand can not afford, can not afford to skin, there is a certain strength waterproof coating, drainage slope meet the design requirements, yin and yang angle should be made not less than 30mm in diameter rounded or slope angle. (2) If the base surface is dry, must first pre-wet the base surface, keeping the base surface moist, but not out of water present. (3) Once these defects should be treated before they proceed. ① uneven, pits, when the water available JCDecaux synthetic latex cement mortar fill find slope. ② should be removed from the skin surface. Polymer cement-based waterproof coating, large Yu Industrial quality assurance, Ruyang waterproof coating provided by Luoyang, Henan Industries Limited. "Home coatings architectural coatings adhesives" preferred Luoyang, Henan Industrial Co., Ltd. (www.lydayushiye.com/), the company is located: Lin Guan Road Luolong 8th District, Luoyang, Henan Province, over the years, a large Yu Industrial adhere to the customers the best quality service, contact: Wang Linlin. Welcome to the new and old customers call, letter, visit the guide, business negotiations. Great Yu Industrial expect to be your long-term partner!