For the manufacture of quartz glass, optical instruments, chemical containers, ordinary glass, refractory materials, optical fiber, ceramics and the like. The nature of the silica inert, it does not fluorine, hydrogen fluoride other than halogen, hydrogen halide and sulfuric acid, nitric acid, perchloric acid effect (except hot concentrated phosphoric acid). Obtained from many silica matting agent, silica, according to the manufacturing process can be divided into two categories. One is the hydrothermal method of manufacturing silica manufacturers, production of silica forms relatively soft. Products made with silicone texture is hard. After treatment, the two types of products can be made of standard silicon dioxide matting agent. Process is the use of organic (paraffin), or an inorganic material on the silica surface modified to some extent. Compared with the silica matting agent, the treated silica has a different particle size distribution and pore volume. Hydrothermal method matting agent in particle size and distribution are also different. Untreated and treated products are different. At present, only a matting agent suitable for special occasions, silica Which good sales, the matting agent manufactured by pyrolysis, has a strong extinction efficiency and is particularly suitable for water-based coating systems silica Which is guaranteed | Weifang Fuyuan (Online) | silica provided by the Environmental Protection Technology Co., Ltd. Weifang Fuyuan. Weifang Fuyuan Environmental Technology Limited (www.wfdafuyuan.com) (www.wfdafuyuan.com) Shandong Weifang, other leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer demand. In Weifang Fuyuan leadership with the staff warmly welcome all inquiries negotiations to create Weifang Fuyuan better future.