High purity silica powder

High purity silica powder series are precision-graded products manufactured from high-purity crystalline silica. With SiO₂ purity ranging from 99.95% to 99.99% and ultra-low impurity levels, the series features excellent dielectric properties, low coefficient of linear expansion, and stable thermal conductivity and refractive index. Available in multiple particle size specifications across G-series and R-series, with Mohs hardness of 6.0 and density of 2.2×10³ kg/m³, it meets the precise particle size distribution requirements of various industries.

• • High-grade silica ceramic – Serves as high-performance ceramic matrix raw material
• enhancing density and mechanical properties
• • 5G product filler – Low dielectric loss ideal for high-frequency substrate filling in 5G communication
• • Optics – Stable refractive index for optical glass and optical components
• • Aviation & aerospace – Low coefficient of linear expansion meets stringent aerospace-grade material requirements
• • Electronics industry – High purity and low impurity for electronic packaging
• copper clad laminates
• etc.
• • Chemical industry – Chemical corrosion resistance for specialty coatings
• adhesives and sealing materials