Material has an IPN ("interpenetrating network polymer") structure. Due to this chemical structure the material can sustain high shear elongation before failure and allow a very low crack growth rate (high toughness). HPE is a thermoset material and shows higher temperature and styrene resistance than PVC and SAN. Thanks to its production process HPE is constituted by a very uniform and fine cell structure. The lower cell size leads to a lower resin intake in sandwich manufacturing.Information provided by NMG Composites Co., Ltd. |