Obtained from a silica matting agent precipitated silicas Which many high-volume, according to its manufacturing process can be divided into two categories. One is the hydrothermal method of manufacture, production of silica forms relatively soft. Products made with silica gel texture is hard. After treatment, the two types of products can be made of standard silica matting agent. Process is the use of organic (paraffin) or inorganic materials on the silica surface modified to some extent. Compared with the silica matting agent, the treated silica has a different particle size, size distribution and pore volume. Hydrothermal method matting agent particle size and distribution of the different. Untreated and treated products are different. Currently there is only one matting agent to adapt to special occasions, the matting agent manufactured by pyrolysis, has a strong extinction efficiency precipitated silica products, and is particularly suitable for water-based coating systems for the manufacture of flat glass silica glass products, precipitated silica foundry sand Company, glass fiber, ceramic glaze, sandblasting rust, sand filtration, flux, and a lightweight refractory concrete bubbles. Silica is very versatile. Precipitated silica manufacturers, Weifang Fuyuan (certified), precipitated silica supplied by Environmental Science and Technology Co., Ltd. Weifang Fuyuan. Weifang Fuyuan Environmental Protection Technology Co., Ltd. (www.wfdafuyuan.com) (www.wfdafuyuan.com) Shandong Weifang, the other leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In Weifang Fuyuan leadership with the staff warmly welcome all inquiries negotiations to create Weifang Fuyuan a better future.