The main application fields of fumed silica are as follows: 1. HTV high temperature silicone rubber, such as silicone, the entire chain must be added with gas phase silica (such as medical use in the field of silica, such as high-voltage insulation for high-voltage insulation, such as Special silica gel for aerospace is used for UV resistance, high temperature and low temperature resistance, such as LED packaging adhesive. 2.RTV silicone silicone sealant (such as glass glue such as photovoltaic glue) 3. Coating, such as marine paint 4. Ink 5. Resin, polyester, etc. 6. Colloidal battery, etc. 7. For high-end kitchen rubber products, such as a specific surface area of about 90 products for high-end kitchen glue 8 for cosmetics 9 for medicine and food additives 10. for Defoamer 11. Chemical mechanical polishing liquid for semiconductors 12. Used for high-end cold chain such as true thermal insulation board 13. Used for thermal insulation materials, refractory insulation materials 14. Matting agent