PETG (Polyethylene Terephthalate Glycol) filament offers the best compromise between PLA's ease of printing and ABS's strength. Water, chemical, and UV resistant, with good thermal resistance up to 80 °C, it is the go-to material for functional parts intended for real-world environments. At Strato3D, you'll find over 40 PETG filaments from top brands.
When to use PETG
- Functional outdoor parts: supports, brackets, containers — resists rain and UV rays.
- Containers and bottles: same material as plastic bottles (traceable to food-grade PET).
- Everyday use parts: accessories, supports, objects subject to impacts and bending.
- Pre-production prototypes: parts that realistically simulate final use.
- Transparent prints: PETG has very aesthetically pleasing transparent "glass" colors.
Technical Specifications
- Nozzle temperature: 220-250 °C.
- Bed temperature: 70-90 °C.
- Thermal resistance: up to 80 °C in continuous use.
- Impact resistance: 4-5 times higher than standard PLA.
- Chemical resistance: excellent to oils, diluted acids, alkalis.
- UV-resistance: fair, better than PLA but inferior to ASA.
- Stringing: tendency to string — optimize retraction and temperature.
Brands you'll find at Strato3D
Complete selection of PETG: Prusament PETG and PETG V0 (self-extinguishing), Polymaker PolyLite PETG, Sakata3D PET-G in 1kg and 2.5kg formats, eSUN ePETG and ePETG-CF (carbon fiber), Bambu Lab PETG-HF, BCN3D Filaments, Sunlu.
Frequently Asked Questions
Is PETG food-safe? PETG itself is food-safe, but FDM printing creates micro-cavities. For food use, check food-contact certified filaments.
Does PETG absorb moisture? Yes, it is hygroscopic. Store it in a dryer if not used for more than a week. Dry at 65 °C for 4 hours if it has absorbed moisture.
Is it weather resistant? Yes, much better than PLA. Good UV resistance, excellent water resistance.
PETG or ABS? PETG is easier to print, less toxic, and weather resistant. ABS is more thermally resistant (90-100 °C vs 80 °C) and adheres better with acetone. For everyday use, choose PETG.