採用火焰法或離子火焰法熔融成球型的非晶態硅微粉。  以不規格的角形石英粉，通過火焰熔融法離子法價格高成球形，具有低應力，好流動性性，比表面積小的二氧化硅顆粒粉體。

Spherical silica powder is an amorphous silica powder which made from irregular silica powder .its made by fusion flame method and high temperature process. It is  featured by good fluidity,low inner stress.