... ,insulation,plastic,welding dry/wet ground muscovite mica powderForm:powder,flakes,scrap Size:10mesh-1250mesh Use:cosmetic,coating,rubber, ... insulation,plastic,welding 1. Wet Ground Mica Powder SizeOverSieve %Sand %Loose DensityWaterLostWhitenessDia-thickRatio120µm/120mesh250µm<0 ... felt, decoration, oilwell drilling and cosmetics, etc. dry mica powder for electric welding rod