Brushing primer: polyurethane A, B groups were proportionally 1:1.5:2 and xylene (weight ratio) with stir polyurethane waterproof coating composition, can be used. Use the scroll brush or paint brush dipped in glue evenly brushing the bottom surface at the grassroots level, not too thin nor too thick polyurethane waterproof coating, brushing amount of 0.2kg / m or so. After brushing should be dry and waterproof polyurethane coating over 4h indicators, the next step is to carry out the operation. Building waterproofing measures shall prevent water penetration in some parts of the building from the building materials and constructional taken. Waterproof multi-use in roofing, underground construction, buildings and underground parts of the chamber and the need for water storage structures and so on. According to the different measures and means of waterproofing and structural waterproofing materials into two categories. Waterproof material is by blocking water supplies path to achieve the purpose of water or increase resistance to leakage, such as waterproof membrane, waterproof coating, concrete and cement mortar and rigid waterproof clay, lime water and other classes. Polyurethane waterproof coating plant | long source of waterproof material | polyurethane waterproof coating provides long-source by Weifang waterproof material Limited. Weifang City for the source of waterproof material Ltd. (www.jiuyuanfangshui.com) Shandong Weifang, waterproof, moisture-proof materials, leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In the long leading source of waterproof material with the staff warmly welcome all inquiries negotiations to create long waterproof material source a better future.