PETG, is a durable and easy-to-use filament that is often used to blow molding like medical braces, bottles, signage and other durable plastic products. The glycol modifier added to polyethylene terephthalate helps enhance the durability and printability of the filament.
Because it can be FDA certified and is chemical resistant, PETG can be used to mold everything from medical devices to water bottles without raising any cause for concern over safety. Its rigidness makes it a good material for any form molding that might be used when parts need to hold their shape under pressure. Common applications are in electronics or robotics. The molecular structure of PETG also allows it to be recycled easily, which
The PCTG products are widely used in sports water plastic bottle, baby feeding plastic bottle, perfume bottle, cosmetic bottle and bottle cap, lipstick tube, makeup box, deodorant packaging, powder plastic bottle and eyeliner. PETG injection molding products include medical devices such as filters, ear pharyngeal.
As a replacement, many manufacturers now adopt another engineering plastic – polycyclohexane dimethyl terephthalate modified by glycol (PCTG). It has excellent toughness and good heat resistance at ~120˚C. It is food safe as granted by FDA, and so will not emit BPA. PCTG is generally priced about 20% higher than PC.