Expendable Polyethylene Foam (E.P.E.) is one kind as raw materials with low density polyethylene, through special method and technology, make and become independent bubble not to foam the body by way of adding and foaming the pharmaceutical directly. E.P.E. has the following characteristics: A. Buffering: Full of elasticity, can buffer, and can absorb impact. B. Insulating against heat: Can insulate against heat, keep warm, assure coldly. C. Physics: Waterproof, damp proof, able to bear the oil, the resistance to the action of a drug is strong, Yes printing opacity, able to bear waiting , nonpoisonous, without bad smell, an insulator. D. Flexibility: Independent bubble, soft and comfortable, can protect the object surface. E. Sound insulation: Hide the sound, soundproof. F. The raising floats: The quality enters water and does not sink lightly, increase the buoyancy. G. Processability: It is apt to punch, cut out, weld, seal the bag, print , laminate, processing is more convenient. E.P.E. is used daily in our modern life-style. It is used in household electric appliances, electronic products, wooden furniture, plastic products, as leather handbag and trunk lining, carpet cushion, sport padding, in toys as leisure mat, roof heat, insulating material, insulation bag, life vest, floating buoy, fruit packing envelop, for packing precise instruments, bicycle, porcelain receptacle, glass, fluorescent lamp music instrument, etc.