# How do I stop PETG stringing?

Dry the spool, then tune temperature and retraction inside that spool's listed nozzle range. The highest-scored replies here blame wet PETG, and one reply says they never dry PETG and blame retraction instead.

Dry the spool, then tune temperature and retraction inside that spool's listed nozzle range. The highest-scored replies here blame wet PETG, and one reply says they never dry PETG and blame retraction instead.

Stringing on PETG starts with the spool. The replies that scored highest say the filament is wet. One reply disagrees and never dries it.

## Dry the spool you loaded

[r/prusa3d 11cxj6f](https://www.reddit.com/r/prusa3d/comments/11cxj6f/) is a Mini+ first PETG print. The score-30 reply says drying, and nothing else, is what cleaned it up. [r/prusa3d 13ckz2q](https://www.reddit.com/r/prusa3d/comments/13ckz2q/) says a fresh bag still strings. The score-17 reply says PETG loves water. [r/prusa3d 11ykff2](https://www.reddit.com/r/prusa3d/comments/11ykff2/) puts wet filament ahead of temperature and retraction. [r/FixMyPrint 1ix5trz](https://www.reddit.com/r/FixMyPrint/comments/1ix5trz/) says dry first, then tune retraction. A score-4 reply on that thread says they have never dried PETG and that stringing is retraction.

Use the row, not a single drying guess. [PolyLite PETG](/brand/polymaker/polylite-petg) lists 65 °C (149 °F) for 6 h. [SUNLU PETG](/brand/sunlu/petg) lists 60–65 °C (140–149 °F) for 6–8 h. [PETG HF](/brand/bambu-lab/petg-hf) lists 65 °C (149 °F) for 8 h. [Prusament PETG](/brand/prusament/petg) uses the Prusa material guide at 55 °C (131 °F) for 6 h. [eSUN PETG](/brand/esun-3d/petg) lists 60 °C (140 °F) for 8 h. The measured drying table is the [filament drying dataset](/data/filament-drying). Process for any material is [drying](/answers/drying). General stringing is [stringing](/answers/stringing). PETG setup is [good PETG prints](/answers/petg_print). Ooze on travel is [ooze](/answers/ooze).

## Temperatures that showed up in the threads

A score-5 reply on 11cxj6f liked about 215 °C (419 °F) on an eSUN tower and says white and black eSUN wanted different temperatures. eSUN PETG lists 220–250 °C (428–482 °F), so 215 °C (419 °F) is below the row. A score-11 reply on 11ykff2 says 230 °C (446 °F) looks low for Prusament. Prusament PETG lists 240–260 °C (464–500 °F), so 230 °C (446 °F) is below that nozzle. The poster on 13ckz2q is at 230 °C (446 °F) on the first layer and an 85 °C (185 °F) bed with purefil, which is not a catalog brand.

[r/FixMyPrint 1qgm39r](https://www.reddit.com/r/FixMyPrint/comments/1qgm39r/) is Bambu PETG Translucent on a hook. The score-46 reply still expects a few hairs and names a lighter. A reply says eight hours in a dryer. That time matches the PETG HF sheet. The sheet's drying temperature is 65 °C (149 °F). [PETG](/material/petg) is the material page. [Polymaker](/brand/polymaker), [SUNLU](/brand/sunlu), and [Prusament](/brand/prusament) are the brand indexes.

Updated 2026-10-20. Sources accessed 2026-10-20. Use case: PETG.

## Ranked filaments

| Rank | Filament | Nozzle | Bed | Price per kg |
| --- | --- | --- | --- | --- |
| 1 | Polymaker Polylite PETG | 220–250 °C (428–482 °F) | 70–90 °C (158–194 °F) | — |
| 2 | SUNLU PETG | 240–260 °C (464–500 °F) | 60–70 °C (140–158 °F) | — |
| 3 | Bambu Lab PETG HF | 230–260 °C (446–500 °F) | 65–75 °C (149–167 °F) | — |
| 4 | Prusament PETG | 240–260 °C (464–500 °F) | 70–90 °C (158–194 °F) | — |
| 5 | eSUN 3D PETG | 220–250 °C (428–482 °F) | 70–90 °C (158–194 °F) | — |

## What the community says

r/prusa3d 11cxj6f is a first PETG print on a Mini+ with stringing and pilling. The score-30 reply says drying, with no other change, is what made the prints clean. A score-5 reply ran a temperature tower, liked about 215 °C (419 °F), and says white and black eSUN PETG wanted different temperatures. The same reply still calls the poor surface humidity. r/prusa3d 13ckz2q is first-layer stringing and globs. The poster lists 230 °C (446 °F) on the first layer, an 85 °C (185 °F) bed, and purefil. The score-17 reply says PETG loves water and to dry it, then dial Z again. r/FixMyPrint 1qgm39r is Bambu PETG Translucent stringing on a simple hook. The score-46 reply calls some stringing a fact of life and names a temperature tower, retraction, and a lighter for leftover hairs. A reply says to dry for eight hours. r/prusa3d 11ykff2 is stringing on long prints. The score-26 reply says the main reason is wet filament. A score-11 reply says 230 °C (446 °F) looks low for Prusament and asks whether the nozzle is tight against the heatbreak. r/FixMyPrint 1ix5trz is heavy PETG stringing on an Ender 5 Plus. The score-13 reply says dry first, then tune retraction. A score-4 reply says they never dry PETG and that stringing is a retraction and temperature problem.

## Sources

- [PolyLite PETG technical data sheet](https://cdn.shopify.com/s/files/1/0548/7299/7945/files/PolyLite_PETG_TDS_EN_V5.4.pdf) (datasheet)
- [SUNLU PETG product page](https://www.sunlu.com/products/petg-3d-printing-filament) (manufacturer)
- [SUNLU filament wiki](https://www.sunlu.com/wiki/61) (manufacturer)
- [Bambu PETG HF technical data sheet](https://store.bblcdn.com/ce12d65176a94f1086e6aefa238e62e2.pdf) (datasheet)
- [Prusament PETG technical data sheet](https://www.prusa3d.com/file/3464616/prusament-petg-technical-data-sheet.pdf) (datasheet)
- [eSUN PETG product page](https://www.esun3d.com/petg-product) (manufacturer)
- [Community source, r/prusa3d 11cxj6f](https://www.reddit.com/r/prusa3d/comments/11cxj6f/) (reddit)
- [Community source, r/prusa3d 13ckz2q](https://www.reddit.com/r/prusa3d/comments/13ckz2q/) (reddit)
- [Community source, r/FixMyPrint 1qgm39r](https://www.reddit.com/r/FixMyPrint/comments/1qgm39r/) (reddit)
- [Community source, r/prusa3d 11ykff2](https://www.reddit.com/r/prusa3d/comments/11ykff2/) (reddit)
- [Community source, r/FixMyPrint 1ix5trz](https://www.reddit.com/r/FixMyPrint/comments/1ix5trz/) (reddit)

HTML: https://filamentfacts.com/answers/petg_stringing