Polyethylene foam cotton is a non-crosslinked closed-cell structure, also known as EPE pearl cotton, is a new environmentally friendly packaging materials. It is composed of low-density polyethylene resin by physical foaming to produce countless independent bubbles. Overcome the ordinary styrofoam fragile, deformation, poor responsiveness shortcomings. It has many advantages such as waterproof and moisture-proof, shockproof, sound insulation, heat preservation, good plasticity, strong toughness, recycling, environmental protection, strong resistance to collision, etc. It also has very good chemical resistance. It is an ideal substitute for traditional packaging materials.