First, the definition of polyurethane coatings, also known as polymer bitumen asphalt coating of polyurethane waterproof material. Second, the product overview: polyurethane polymer asphalt coating for asphalt coating of polyurethane waterproof material, waterproof anti-corrosion epoxy type polymer series, life as a permanent preservative waterproof material. Long life, easy construction. Three, excellent features: a wide range of applications, long life, weather resistance, resistance to deformation, high tensile strength, elongation, shrinkage and cracking deformation grassroots adaptability, acid resistance, alkali resistance, superior corrosion waterproof performance, Any complex parts are easy to apply, to solve the traditional waterproof anti-corrosion materials, such as paint facade fell, roll hollowing, and complex part of the operation of the difficult problems. Completely replace the traditional preservative waterproof material. Has a better ratio of corrosion, waterproofing, insulation properties. Fourth, the scope: 1, bottom underground concrete foundation projects, side, back, excavation, basement waterproofing preservative; 2, cement-based building, excavation, foundation, floors, piers, railways, ports, docks, coal, oil drilling waterproofing preservative, 3, trough, water towers, tanks, cooling towers, cesspools, edible clear pool water corrosion engineering; 4, new and old residential buildings, roofs, bathrooms, gutters, balconies, facades , basement, storage, preservation, and various water tunnels and bridges pouring various joints watering; 5, various metal pipes, rebar, concrete corrosion engineering, to prevent corrosion, extend the life of concrete. Fifth, the construction method: This product is manufactured with the direct use to put this product into after heating the liquid, for construction at Scraping can be, complete one layer high elastic rubber elastomer gel formed after curing. For no seams, no continuous closed system connector. After the completion of corrosion waterproof, do cover up a protective layer of sand or other covers over layers.