... 5.Pure biotite material Series: Muscovite, Phlogopite, biotite, sericite, wet ground and dry groundSize: 20mesh, 40mesh, 60mesh, 80mesh, 100mesh, 200mesh, ... : (1) Used in decorating, paint and coating. (2) Mica powder is the basic raw material for mica ceramics products. (3 ... ) It can be used in fire-fighting dry powder, protecting layer of welding rods, conducting wires and electric cables ...