Material preparation: 1) coating: the strength and hardness in line with construction norms 2) broom: a wire brush and other tools grassroots dust, debris clean, whitewashed plaster factory, and the grass-roots level surface irregularities tick repair parts. 3) Gypsum: fill the unevenness good; 4) knife: eradicate grass gray blocks, dross; slurry preparation: gypsum mortar material mixing ratio should be appropriate recommendations with reference to the ratio recommended. A feeding amount should be used within a specified time. After the initial setting of the slurry can not be stirred again with water use. The first water into the mixing bucket, wall plaster processors, then pour the gray material, wall plaster, stirring for 2 to 5 minutes, the slurry reaches the right consistency, stand for 5 minutes before stirring after the second use. Shandong wall plaster, Shia Billiton (certified), wall plaster, Ltd. from Beijing Shia Extension Building Materials. Beijing Shia Extension Building Material Co. (www.xiyatuo.net) is Beijing's Miyun County, interior paint leaders, over the years, the company implement the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Shia leaders in Rio with the staff warmly welcome all inquiries negotiations to create a better future extension Shia.