The addition of fumed silica during the processing of vinyl fiber fabrics can change the properties of the vinyl and act as a matte. On an audiovisual tape, fumed silica is used as a release agent. As a filler for electronic packaging materials, it can improve the performance of materials and reduce the curing time. In the bulb industry, the inner wall of the bulb is lined with a fumed silica interference film, which can improve the luminous efficiency of the bulb and prolong the service life of the bulb. The addition of surface treated fumed silica to plexiglass improves the UV radiation resistance and impact strength of the material. In the battery industry, fumed silica is used as a release agent. In the catalyst industry, fumed silica is used as a carrier. In optical fiber and optical cable filling materials, fumed silica can be used for thickening and thixotropic action. In addition, by using the heat insulating property of the fumed silica, it is possible to prepare a heat insulating material having excellent properties.