PETG filament is a type of 3D printer material used for design and prototyping. PETG is produced from a thermoplastic polymer called polyethylene terephthalate glycol and is commonly known as PET (polyethylene terephthalate). PETG filament has similar properties to PET but is more durable and flexible. Since PETG is also a material that does not retain a permanent shape, it is a suitable choice for 3D printer products. PETG filament can be used in different types of 3D printers and is typically manufactured using the FFF (fused filament fabrication) method.