Calcium stearate is widely applied in food, medicine, cosmetic, plastic, rubber fields, mainly function as lubricant, emulsifier, stabilizer, releasing agent, accelerant etc. It can boost the freezing rate in hard plastic product. Also it is applied in the non-toxic soft film, such as food packing and medicine apparatus, can effectively improve film’s stability. It is stabilizer & lubricant in PVC and PE. It is halogen adsorbent in PE and PP, can eliminate the poor effect on resin’s color and stability because of catalyst remains.