PETG filament is a type of 3D printing filament made from polyethylene terephthalate glycol. It is a semi-crystalline thermoplastic that is known for its strength, durability, and flexibility. PETG filament is often used for functional prints that need to withstand wear and tear, such as tools and parts. It is also used for aesthetic prints, as it can be produced in a variety of colors and finishes.

PETG filament is easy to print and has a low warp rate. It is also resistant to water and chemicals, making it a good choice for outdoor applications. However, PETG filament can be difficult to print at high speeds, as it can cause stringing and oozing. It is also important to use a heated bed when printing with PETG filament, as it can warp if printed on a cold bed.

Overall, PETG filament is a versatile and reliable 3D printing filament that is suitable for a variety of applications. It is easy to print and has a low warp rate, making it a good choice for beginners. It is also strong, durable, and flexible, making it a good choice for functional prints.