Wet Ground Mica Powder. Mica Powder in various forms is obtained by grinding/breaking mica Flakes, which is a slow, costly and extremely complicated process, because of the scrap being tough and having a plate like structure.
Described is a process for preparing mica powder in finely divided form having a median value of the particle size distribution curve of less than 50 mu, which is prepared by wet grinding, delaminating, filtering, washing and drying.
There are two different manufacturing processes of mica powder: dry grinding without water and wet grinding with water. Dry ground mica powder has the advantages of low cost,large output, heavy loose bulk density.