HDPE is a thermoplastic resin of high crystallinity. With a creamy appearance, HDPE can be floated on the water. It shows good performance like chemical stability, resistance to almost all acids, alkaline, organic solvents and hot water. It is insulated to electrics and electronics, and is also able to be melted. By meeting requirements on the food safety, HDPE products has been widely used in food industries, chemical and medical industries.