With the development of chemical industry, polystyrene foam has been used as packing material, disposable tableware, etc.

After adding a certain amount of liquid modifier with low boiling point, foaming agent, catalyst and stabilizer to the foamed polystyrene foam plastics, the beads of polystyrene can be pre-foamed by heating, and then the rigid polystyrene foam plastic board with fine closed pores can be made by heating in the mold.

This kind of board can use alone, also can use thin aluminous board to wrap make it aluminous model board again after forming.The heat preservation performance is very good, through the house roof actual use test, the result does not have the frost and the dew phenomenon, and may reduce the project cost, the construction operation is convenient.