Heads up: some links on this page are affiliate links. As an Amazon Associate I earn from qualifying purchases, at no extra cost to you.
PETG is the natural next step after PLA. It is tougher, handles more heat, resists water and many chemicals, and prints on almost any printer without an enclosure. It is slightly fussier than PLA, mostly because it strings and sticks very well to some build plates. This guide shows how to get clean PETG prints.
PETG at a glance
| Property | Typical value |
|---|---|
| Nozzle temperature | 230 – 250 °C (many profiles use 235 – 245 °C) |
| Bed temperature | 70 – 85 °C |
| Print speed | A little slower than PLA |
| Cooling fan | Low to medium: 30 – 70 % |
| Enclosure | Not required; avoid strong drafts |
| Heat resistance | Softens around 70 – 80 °C |
| Typical cost | About $17 – $25 per 1 kg spool |
PLA vs PETG (editorial rating out of 5, higher is better)
When to choose PETG over PLA
- Parts that carry load or flex slightly: brackets, clips, hooks, tool holders.
- Items near moisture: bathroom organizers, planters, outdoor labels in shade.
- Parts that may reach 60 – 70 °C: car dash organizers, holders near electronics.
- Anything that would snap in PLA when dropped.
Where to buy
| Brand | Why people like it | Where to buy |
|---|---|---|
| Overture PETG | Consistent and affordable | Find on Amazon |
| SUNLU PETG | Good value and many colors | Find on Amazon |
| Elegoo PETG | Tight tolerance | Find on Amazon |
| Polymaker PETG | Premium, very consistent | Find on Amazon |
| Bambu Lab PETG | Pre-tuned for Bambu printers | Find on Amazon |
PETG print tips
- Slow the fan. Too much cooling hurts layer bonding. Start at 40 %.
- Raise Z offset slightly. PETG likes a little more nozzle gap on the first layer and can stick too hard if squished.
- Use glue stick on smooth PEI. A thin layer works as a release agent so you do not damage the sheet.
- Print outer walls slower for cleaner surfaces.
- Dry it. PETG absorbs moisture quickly: dry at 60 – 65 °C for 4 – 6 hours if you hear popping.
Common PETG problems and fixes
| Symptom | Likely cause | Fix |
|---|---|---|
| Strings and blobs | Too hot or wet filament | Lower temperature 5 – 10 °C, tune retraction, dry the spool |
| Part is welded to the plate | Nozzle too close or no release layer | Raise Z offset, use glue stick, let the bed cool |
| Weak layers | Too much cooling or too cold | Lower fan, raise temperature a little |
| Rough top surface | Over-extrusion | Lower flow 2 – 3 % and calibrate flow |
| Cloudy or foggy clear prints | Too fast or wet | Slow down and dry the filament |
See our calibration tutorial for temperature and flow tests, and our PLA guide if you are new to filament.
Frequently asked questions
Is PETG food safe?
Treat 3D printed parts as not food safe. The filament may be food-grade, but layer lines hold bacteria and additives vary.
Can PETG go outdoors?
In shade, yes. It tolerates water well, but long sun exposure can weaken and yellow it. ASA is the better outdoor choice.
Does PETG need an enclosure?
No. Most open-frame printers print PETG well. Just avoid drafts.
How do I stop PETG from sticking too hard?
Raise Z offset a little, use glue stick on smooth PEI, and let the plate cool before removing the part.
