Oh PET-G!
PETG is an abbreviation for Polyethylene Terephthalate (with a glycol modification) which is one of the most common polymers used today - It is used to make water bottles, food packaging, and many other common plastic items. PETG is fast becoming one of the most popular filaments for 3D printing. Not only is it easy to use, it also sports a number of industrial benefits. If ABS is turning out to be more difficult to work with than you realized, and you want a stronger finish
