PETG vs ABS
PETG and ABS are both strong, functional filaments — but PETG is dramatically easier and safer to print, needing no enclosure and producing no harsh fumes, while ABS demands a sealed, ventilated setup. ABS keeps two advantages: higher heat resistance and acetone vapor-smoothing for a glossy finish. For most people, PETG is the better default; reach for ABS only when you specifically need its heat tolerance or smooth finish.
PETG vs ABS: side by side
| Property | PETG | ABS |
|---|---|---|
| Strength | 4/5 | 4/5 |
| Flexibility | 2/5 | 2/5 |
| Heat resistance | 3/5 | 4/5 |
| Ease of printing | 4/5 | 2/5 |
| Surface finish | 3/5 | 3/5 |
| Nozzle temp | 220-250°C | 230-260°C |
| Bed temp | 70-90°C | 90-110°C |
| Enclosure needed | No | Yes |
| Ventilation needed | No | Yes |
| Hardened nozzle | No | No |
| Typical price | $25/kg | $22/kg |
Property scores are relative (1-5) for quick comparison. Polyethylene Terephthalate Glycol vs Acrylonitrile Butadiene Styrene.
PETG is best for
ABS is best for
Which should you choose?
Choose PETG for strong functional parts without the hassle — PETG gives you most of ABS's toughness with none of the warping, enclosure, or ventilation requirements.
Choose ABS for parts that must handle higher heat (engine-bay, near electronics) or that you want to acetone-smooth to a glossy finish — and you have an enclosed, ventilated printer and the experience to manage warping.