Counterpoint polystyrene is a new kind of polymer material, has many excellent properties. In a high temperature furnace burning polystyrene powder, began to decompose at 530 degrees, no melting point of 450 DEG C long-term heating ignition micro weightlessness. Chemical corrosion resistance, so far, has not yet found a can make good polystyrene solvent, have excellent corrosion resistance, superior and molybdenum and graphite.