Silica slag is a fine silicon powder with excellent physical and chemical properties that can be used in many fields. First of all, silica slag can be used to make coatings, which can be used to improve the oxidation resistance, wear resistance and corrosion resistance of coatings, and can extend the service life of coatings. Secondly, silica slag can be used to make glass, which can be used to improve the heat resistance, impact resistance, wear resistance and oxidation resistance of glass, and can extend the service life of glass. In addition, silica slag can also be used to manufacture rubber products, which can be used to improve the anti-aging performance, crack resistance and wear resistance of rubber products, and can extend the service life of rubber products. In addition, silica slag can also be used to manufacture inorganic non-metallic materials, which can improve the heat resistance, wear resistance and corrosion resistance of inorganic non-metallic materials, and can extend the service life of inorganic non-metallic materials.