HP-5 has a high mechanical strength, heat Resistance, and can be used in ... long run This kind of product is a kind of high temperature resistance insulating material,we let mica powder 505- ... moulding like board, pipe and tile.HP-5 has a high mechanical strength, heat Resistance, and can be used in ... loss after heating 500~C%1.6 HP-5 high temperature resistance muscovite powder series mica products