Polyethylene Terephthalate (PET) is known widely and is familiar with consumers in the form of PET bottles. This has been the only area of application for this recyclable, lightweight thermoplast. However, PET foams have opened up a great number of possibilities as a core material. Well-known core materials in the industry are SAN, PVC and PMI foams, as well as balsa and honeycombs but the innovative PET foams offer an interesting ratio of stability to density. PET foam is temperature, corrosion and chemical resistant, lightweight, stable yet flexible and offers a great compressive strength.
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