PVC can not be recycled, PET can be recycled, when using PET bottles, use PVC labels, and PET labels that need to remove PVC labels when recycling bottles do not need to be removed; PET has excellent media properties, with good anti-fouling, anti-scratch, high temperature resistance and other properties ; PVC and PET performance is similar, it has good flexibility than PET, soft feel, but the degradation of PVC is poor.

PET hard sheet has good toughness, high transparency, easy to burn, and does not produce harmful gas when burning. It is an environmentally friendly material, but the price is high, and it is suitable for high-end blister products. The blister blister in Europe and the United States generally requires PET hard film, but It is not easy to heat seal, which brings great difficulties to packaging. In order to solve this problem, people compound a layer of PVC film on the surface of PET, which is named PETG hard sheet, but the price is higher.

PVC hard sheet has moderate toughness, is not easy to burn, and generates chlorine gas when burning; PVC is easy to heat, and can be edge-sealed by a sealing machine and a high-frequency machine. It is the main raw material for the production of transparent plastic products.