Construction process of the second layer of polyurethane waterproof coating film: After the first layer of coating polyurethane waterproof coating wholesale, coating curing the sticky, according to first-pass ratio of polyurethane waterproof coating material type, the second time Tu Operating polyurethane waterproof membrane coating manufacturers, uniform thickness of the coating, blade direction perpendicular to the direction must first pass Scratch, scratch the same amount and the first pass. Shouguang City Shield waterproof material Ltd. waterproof material on the market, there are two categories: First, the polyurethane waterproof coating. Such materials are generally made from polyurethane and coal tar as raw material. Its volatile petroleum coke toxic, not easy to remove, so in 2000 was banned in China. Still selling polyurethane waterproof coating, instead of coal tar pitch is used as a raw material. Polyurethane waterproof coating manufacturers | Shaoxing polyurethane waterproof coating | Huadun waterproof material provided by Shouguang City Shield waterproof material Limited. Shouguang City Shield Waterproof Materials Co., Ltd. (www.huadunfangshui.com) strong, credible, Shandong Weifang waterproof, moisture-proof materials industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead the Chinese Shield waterproof material and you hand into the brilliant, for a better future!