Silica powder for copper-clad laminates (CCLs) is an ultra-fine functional filler with silica as the core component, available in angular, spherical and other types. It features high purity, excellent insulation and low thermal expansion coefficient. When added to the resin system of CCLs, it can improve the board’s heat resistance, dimensional stability and drilling accuracy, while optimizing dielectric properties and enhancing peel strength with copper foil. Among them, spherical silica powder is suitable for high-end scenarios such as high-frequency and high-speed CCLs, while angular silica powder offers high cost-effectiveness to reduce production costs.

Silica powder for paints and coatings has a mesh size of 600-2500, SiO₂ content >99.5%, whiteness of 70-94 degrees, and Mohs hardness 7. It features low oil absorption and mixing viscosity, excellent dispersibility and fluidity, a small angle of repose when piled, and wear resistance. It fits smoothly into the processing of paints and coatings, optimizing construction convenience, enhancing coating wear resistance and stability, and providing reliable support for the performance upgrade of coating products.

Silica powder for rubber has a mesh size of 1250-5000, SiO₂ content >99.5%, whiteness of 70-94 degrees, and Mohs hardness 7. It boasts excellent permeability, dispersibility and strong adhesion, which can evenly integrate into the rubber matrix, effectively enhancing the bonding strength between rubber sheets and canvas to avoid delamination and peeling during use. Meanwhile, its high hardness significantly improves the wear resistance and tear resistance of rubber products, extending their service life. It also optimizes the molding fluidity of rubber during processing and reduces production energy consumption. Widely suitable for various rubber products such as tires, conveyor belts, seals and hoses, it provides reliable support for upgrading the mechanical properties of products.

Silica powder for precision ceramics has a mesh size of 5000, SiO₂ content >99.7%, whiteness >92 degrees, and Mohs hardness 7. It features stable chemical properties, acid and alkali resistance, high temperature resistance, excellent electrical insulation, and UV resistance, which can adapt to the harsh processing and service environment of precision ceramics. With developed pores, high surface activity, low oil absorption rate and strong thickening property, it can be uniformly dispersed in the ceramic green body, effectively optimizing the molding performance and reducing shrinkage deformation during firing. Meanwhile, it significantly improves the density, hardness and mechanical strength of ceramic products, helping to manufacture high-precision and high-stability precision ceramic components, and is widely suitable for the production needs of electronic components, industrial wear-resistant parts, high-end ceramic utensils and other fields.