Isocyanate is one of the main raw material for polyurethane waterproof coatings, commonly used are the following three: First, many times more methyl phenyl polyisocyanate, namely crude xylene methane diisocyanate (crude MDI) also known as polymeric MDI polyurethane waterproof paint for sale, also known as PAPI. Second, toluene diisocyanate 951 polyurethane waterproof coating that TDI. Greater use of polyurethane waterproof coating TDI, European countries tend to use pure 2 polyurethane waterproof coating, 4-TDI or TDI-65, the United States and most of the use of TDI-80. The base surface (substrate) treatment: · The substrate must be strong, smooth, clean and free of dust, grease, wax, mold release agents and other detritus; · the base surface has pores, cracks, defects inequality shall advance cement mortar for smooth, paste plastic strip joints recommend a two-component polyurethane waterproof coating, the node must add a layer of non-woven fabrics, filling nozzle is recommended Lei Bangshi grout filling nozzle; yin and yang corner should be wiped into arc-shaped (or V-shaped); ? Ensure the base surface sufficiently moist, but no clear water; · New poured concrete surface (including the plaster surface) before the construction should be allowed to dry completely. Polyurethane waterproof coating wholesale, China shield (certified), polyurethane waterproof coating is provided by Shouguang City Shield waterproof material Limited. Shouguang City Shield waterproof material Ltd. (www.huadunfangshui.com) Shandong Weifang, waterproof, moisture-proof material leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Shield waterproof material in China, leading the staff warmly welcome all inquiries negotiations to create a waterproof material shields a better future.