The classification temperature from 1050 to 1450 degree with excellent chemical and thermal stability, low thermal conductivity and low heat loss.
◆ As infillings for roofs and walls of certain types of furnaces and kilns
◆ Be used to manufacture of felt, board, paper, vacuum shapes, textiles etc.
◆ As seals for furnace and tube
◆ Be used as composite materials in cement, plastic, resin and metal etc.