Construction process of the second layer of polyurethane waterproof coating film: After the first layer of the coating, the coating cured to a tack-free, according to the first pass material ratio method, the second time the coating operation, as the coating thickness uniform scratch direction must be perpendicular to the direction of the first pass Scratch, Scratch same amount and the first pass. Waterproof coating construction: coating material brushing a few times should be classified polyurethane waterproof coating to make the film thickness uniformity, reduce air bubbles. A coating amount of 0.4 ~ 0.5kg / m2 is appropriate polyurethane waterproof coating thickness of about 0.4 ~ 0.5mm. After the first pass film coated finish polyurethane waterproof coating company, it generally takes more than curing 5h, basically stick to finger when touch, then the vertical direction over the negative angle portion of the second film, floor and wall connections should be no laying fiber woven fabric is reinforced. Piping, equipment foundation, floor drain surrounded by polyurethane waterproof coating technology, Yang angle should enhance brushing the ground, the walls from the ground within thirty centimeters every film, and should be brushing 3-4 times. Plane grassroots to brushing 2-3 times better. According to national norms waterproof coating thickness not less than 2mm qualified. Polyurethane waterproof coating technology | China shield waterproof materials | Changji polyurethane waterproof coating provided by Shouguang City Shield waterproof material Limited. Shouguang City Shield Waterproof Materials Co., Ltd. (www.huadunfangshui.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. Shield waterproof material in China, leading the staff warmly welcome all inquiries negotiations to create a waterproof material Huadun a better future.