EPE（expandable polythene）,also named as pearl cotton,it is a new environmentally-friendly packaging material.lt is formed by numerous foams produced by low-density physical foaming of polythene ester.lt overcomes  common polyfoam’s shortcomings of fragility, labile form and weak resilience.lt has many advantages of waterproofing, anti-humidity, anti-shock, sound insulation, heat preservation, good plasticity, strong toughness, recycling, environmental protection, strong impact and good anti-chemistry performance etc. lt is the ideal substitute of traditional packaging materls.lt is widely applied in packaging of electronic appliance, instrument, computer, acoustics appliance, medical instrument, industrial control case, decorative lighting,art and craft, glass, ceramics, household appliance,spraying,furniture,wine and gift,and inner packaging of hardware,toy,fruit,leather shoes as well. Lts performance becomes superior by adding anti-static agent and fire retardant.