Materials Contrast:
| Materials | Advantages | Disadvantages |
Polyvinylchloride | Excellent clarity Durable and strong Resistant to grease, oil and chemicals Limited recycling opportunities | Environmental unfriendliness PVC is easy to melt when heating |
| Polyethylene terephthalate (PET) | Outstanding clarity Strong yet lightweight Hygenic and safe for direct food contact Resists cracking Barrier to moisture and gas Can be colored or tinted | PET is difficult to melt when heating, price higher than PVC. |
| Polypropylene (PP) | Excellent impact resistance Barrier to moisture Resistant to chemicals, heat, grease and oil Food safe Able to be microwaved and frozen | Low size accuracy, lack of intensity, poor weather resistance, easy to produce "Copper harm". it has a after-contraction phenomenon, after stripping, easy to aging, brittle and deformed. |
| Polystyrene (PS) | Eco-Friendly, Polystyrene is one of the most widely used plastics on the market. offering a thin-gauge solution with superior strength characteristics | Low density, poor toughness, easy to burn |