PETG filament: the numbers
Polyethylene terephthalate glycol. Typical uses: mechanical parts, outdoor fixtures, containers, printer parts.
1.27 g/cm³density (1.23–1.3)
327 mper kg at 1.75 mm
3.05 gper metre
230–250 °Cnozzle
70–85 °Cbed
0.5%linear shrinkage
$22typical per kg ($16–32)
70 °Cmax service temperature
Not neededenclosure
65 °C · 6 hdrying (medium hygroscopic)
2/5difficulty · medium strength · rigid
Printing tips
- Raise the first layer Z slightly; PETG bonds too well to bare PEI and can tear the sheet.
- Run part cooling at 30-50%, not full, to keep layer adhesion.
- Dry it if you see stringing or popping; it absorbs moisture in weeks.
Grams ↔ metres for PETG
What a PETG print costs
Questions about PETG
What temperature should I print PETG at?
Nozzle 230–250 °C and bed 70–85 °C are the usual range. Start in the middle and tune with a temperature tower; no enclosure is needed.
How many metres of PETG are in a 1 kg spool?
About 327 m at 1.75 mm (density 1.27 g/cm³). One metre weighs 3.05 g.
Does PETG need drying?
Yes — it is moderately hygroscopic. Dry at 65 °C for 6 hours before printing if it has been open for more than a few days.
How much does PETG shrink?
About 0.5% linear. To compensate, scale X and Y by 100.50% in the slicer, or measure a test print and use the shrinkage calculator.
Sources: cdn.shopify.com, en.wikipedia.org, wiki.polymaker.com