Defects and seepage must be carefully treated surface of the substrate before coating waterproof coating. Not because the paint during solidification, such as by the action of water pressure will not be solidified coating or the formation of voids, forming a water leakage problems. Base surface clean, no floating pulp, help paint a uniform coating, and with the base surface has a certain cohesion. The base surface dry hard to do in underground engineering, so this provision only made no drops, no water seepage requirements. Waterproof coatings industry stirred up an upsurge of waterproof paint spraying, color polyurethane waterproof coating, some equipment companies have vied for the professional market, with domestic materials companies cooperate to develop suitable spraying techniques. Waterproof coatings in the United States, spray coating application rate is 97 percent, Puyang waterproof coating, waterproof according to China Coating Industry Association 2007 statistics, the Chinese construction waterproofing coating spray rate of only 28%, which also includes the auto industry this requirement highly decorative must spray industry. Therefore, the waterproof coating can be estimated in paint spraying water industry rate is very low. Puyang waterproof coating, color polyurethane waterproof coating, long the source (certified merchants) are provided by the Weifang City for the source of waterproof material Limited. Weifang City for the source of waterproof material Ltd. (www.jiuyuanfangshui.com) is specialized in "waterproof coating, capillary crystalline active parent material, polyethylene third polyester, polypropylene special dry glue" of the enterprise, the company adhering to the "honesty, hard service" concept, to provide you with the highest quality products and services. Welcome to inquire! Contact: Sui Jingli.