PETG
PETG is a glycol-modified variant of polyethylene terephthalate (PET). It combines the ease of printing of PLA with improved strength, flexibility, and chemical resistance. It is a popular choice for functional parts, mechanical components, and prototypes that require good durability and moderate flexibility.
Benefits
Good balance of strength and flexibility
Great chemical resistance
Low shrinkage and warping
Less brittle than PLA
Limitations
Post-processing (like sanding or painting) can be challenging
Prone to scratching
Not as heat resistant as ABS or ASA
Industries
PETG is widely used in consumer goods, packaging, automotive, medical devices (non-implant), and prototyping industries. It’s favored for mechanical parts, protective covers, food containers, signage, and components requiring chemical resistance and durability.