... kind of high temperature resistance insulating material,we let mica powder 505-506 paper be impregnated SAR-9 adhesive,after baked,and then hot ... like board, pipe and tile.HP-5 has a high mechanical strength, heat Resistance, and can be used in a temperature range of 500 ... 7Weight loss after heating 500~C%1.6 HP-5 high temperature resistance muscovite powder series mica products