The Ultimate Guide to PET Sheet Extrusion Lines: Everything You Need to Know
What makes PET sheet the go-to thermoplastic for packaging, medical, and signage? Explore its properties, extrusion process, and why industries are switching from PVC to this recyclable, food-safe material.
SHEET EXTRUSION
PET (Polyethylene Terephthalate) is arguably the world's most widely used thermoplastic polymer — and for good reason. As a thermoplastic, it softens when heated, solidifies when cooled, and can repeat this cycle with minimal degradation. But PET's real value lies in what happens between those phase changes: it becomes transparent, tough, food-safe sheet that can be formed, printed, and recycled again and again. This guide covers what PET is, how PET sheet is made, how it stacks up against PVC, and where it shows up across industries.