Application of sealants and adhesives in the field of silicone sealants and adhesives, fumed silica used as a thickener and thixotropic agents, can increase the bonding strength of the silicon dioxide, to ensure the free flow and prevent caking sag during curing, the collapse scattered, depression, transparency, reinforcement, and shear in. Thickening and thixotropic fumed silica mechanism of action is when it is dispersed in sealants and adhesives, hydrogen interactions among the particles of silica factory strength through its silanol surface, forming a silica aggregation network, the flow of the system is limited, increase in viscosity. Play a thickening effect; subjected to shear force under the action of a silica network is damaged, resulting in decreased viscosity. Which happened silica thixotropic effect high-volume, ease of construction. Once the shear force removed, the structure of such a network may be re-formed, effectively prevent the plastic material during curing of sagging. Common concentrated phosphoric acid (or pyrophosphate) etching silicon dioxide at high temperatures can generate heteropolyacids [3], the molten borates or boric anhydride can corrode silica silica companies and large-scale high temperatures, In view of this nature, the borate can be used in the firing of ceramic flux, in addition to hydrogen fluoride can be dissolved silica acid, soluble in water to generate fluorosilicic acid: 6HF + SiO2 = H2SiF6 + 2H2O silica companies a large scale, Weifang Fuyuan (certified), silica provided by Weifang Fuyuan Environmental Technology Limited. 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.