PETG is one of the leading materials in 3D printing, distinguished by its combination of ease of use and high performance. It is an amorphous copolyester in which the regular molecular structure of PET is disrupted by the introduction of CHDM monomers, thereby yielding exceptional transparency and processing characteristics. It effectively blends the print-friendliness of PLA with the mechanical strength of ABS, and FDM (Fused Deposition Modeling) is the most commonly utilized printing method for this material. Boasting advantages such as high toughness, strong weather resistance, high transparency, and being eco-friendly and non-toxic, PETG is widely employed in the creation of functional prototypes, outdoor products, food-contact containers, and transparent components.