1.high purity,
2.low in linear coefficient of thermal expansion
3.superior in moisture resistance

Fused Silica is produced by fusing and transforming crystalline silica by high temperature into amorphous silica. As result of fusing and amorphous structure, fused silica, as compared to crystalline silica,is purer,and has lower specific gravity and linear coefficient of thermal expansion. as such , it is widely used in electronic industry and high-temperature refractories.

               SiO2: 99.8% min,         Al2O3: 500 ppm max,

               Fe2O3: 50 ppm max,    Na2O: 50 ppm max,

               K2O: 50 ppm max,