PETG Temperature Guide | Nozzle, Bed & Fan Settings

The short answerPETG wants a hot nozzle, a warm bed, and dry filament.

PETG prints best with a nozzle of 240 to 260 °C and a bed near 80 °C. The Prusament and Polymaker datasheets agree on those ranges. Run the part cooling fan low and keep the filament dry.

Settings that work

These ranges come from the Prusament and Polymaker PETG datasheets, with drying guidance from Bambu Lab. Start in the middle of each band, then tune for your printer and your spool.

PETG starting settings
Setting	Recommended	Why
Nozzle temperature	240 to 260 °C	Prusament and Polymaker both land here.
Bed temperature	70 to 80 °C	Prusament lists 80 °C with a 10 °C margin.
Part cooling fan	20 to 60 %	Polymaker range. Start low, raise for overhangs.
Print speed	40 to 60 mm/s	Prusament allows up to 200 mm/s. Slow for detail.

Bed temperature: 80 or 90?

The common PETG bed temperature is 80 °C. Prusament lists 80 °C with a 10 °C margin either way. Move toward 90 °C when the first layer will not stick, or when your room is cold. Stay above 70 °C, or the part can lift at the corners.

Why temperature matters

PETG is a glycol-modified polyester. It needs more heat than PLA to melt and bond. Run it too cold and the layers split and the surface turns rough. Run it too hot and the filament strings and oozes. The working window is wider than ABS, but narrower than PLA.

Common temperature problems

PETG temperature problems and fixes
Likely cause	Fix	Severity
Nozzle too cold	Raise the nozzle 5 °C toward 260 °C	md
Bed too cold	Raise the bed to 80 to 90 °C	hi
Wet filament	Dry at 60 to 65 °C for 8 hours	hi
Fan too high	Drop part cooling to 20 to 40 %	lo

Key takeaways

Print PETG at 240 to 260 °C nozzle and 70 to 80 °C bed.
Keep the part cooling fan between 20 and 60 %.
Dry PETG at 60 to 65 °C before printing; it absorbs water fast.
Raise the bed toward 90 °C if the first layer lifts.

What temperature should I print PETG at?

Start with a 240 to 260 °C nozzle and an 80 °C bed, per the Prusament and Polymaker datasheets. Tune from there.

Is 90 °C too hot for a PETG bed?

No. Prusament allows 80 °C with a 10 °C margin. Use 90 °C when the room is cold or the first layer will not stick.

Why is my PETG stringing?

The nozzle is too hot or the filament is wet. Drop the nozzle 5 °C and dry the PETG at 60 to 65 °C for 8 hours.

How do I dry PETG?

Dry PETG at 60 to 65 °C for 8 hours in a dehydrator or oven, per Bambu Lab. Store it in a sealed bag with desiccant.

For full PETG settings beyond temperature, read the PETG print settings guide. If stringing is the problem, the PETG retraction settings page covers the fix. The PETG hub lists every PETG guide.

Related guides

Sources & methodology

4 citations · reviewed 2026-07-09

01Prusament PETG Technical Datasheetaccessed 2026-07-06Tier 1
02Polymaker PETG Technical Data Sheetaccessed 2026-07-06Tier 1
03Bambu Lab PETG Usage Guideaccessed 2026-06-29Tier 1
043DSourced PETG Filament Guideaccessed 2026-06-29Tier 2

How we vetted this: every claim traces to a tiered source, Tier 1 (manufacturer, slicer, standards) first. Read the full sourcing and conflict-of-interest policy.