I. Introduction the European Nike 911 polyurethane waterproof coating is a polymer chemical reactions waterproof material. It is composed of a polyurethane containing an isocyanate group (-NCO) prepolymer (Part A) and the filler mainly cured body containing a hydroxyl group (-OH) as well as plasticizers, tackifiers, antifungal agents, diluents and the like mixture of additives (Part B). Two-component mixing by a certain percentage, to form a uniform, flexible overall water film after curing. Advantages, excluding coal tar, irritating odor, reduce pollution. 2, cold construction, easy to operate, construction safety. 3, liquid construction, room temperature curing, solidification short, strong bond, waterproof, high impermeability. 4, elongation, cold and heat, corrosion resistance, anti-aging properties. Scope 1, a variety of roof waterproofing works, such as concrete, bamboo, wood, steel, tile structure of the roof. 2, the underground construction waterproofing, basement concrete floor, interior and exterior, retaining walls, tunnels, pits. 3, a variety of building waterproofing works, such as the bathroom, kitchen, non-food, swimming pools, flower beds, sluices ground, interior and exterior, construction joints, expansion joints, wall pipe, fell into the water. 4, bonded corrosion: bonding wood flooring, cement board, asbestos products; ready for pipeline external corrosion, corrosion floor, corrosion pool. Construction steps, the base surface treatment: solid construction surface requirements, smooth, dry, no clear water, no dust, no oil to be filled smooth, low-lying broken. 2, ingredients: Ingredients in accordance with Group: component material = the ratio of 1:2, the first Group A were followed by the addition of Part B material into the container and stir evenly to the black color can be used . 3, the construction: The construction of the material is usually twice stars, mixed paint brush with a rubber scraper or brown evenly coated on the base plane, Scraping should be repeated several times in the two directions perpendicular, to ensure that the coating in penetration and bonding of the base surface, brushing second layer when the first layer is dry cured can. 4, the protective layer construction: In order to increase the adhesive force between the waterproof layer and the protective layer, prior to curing the second coating layer is not yet in its surface sprinkled with coarse sand or fine gravel meter, to enable the protective layer and the waterproof layer between strong bond.