The best PETG filament depends on what you value: documented specs, blend range, or printer-ecosystem fit. Prusament, Polymaker, and Bambu each lead one of those, and all three publish PETG data.

How the products compare

The table compares three PETG products that publish specs. Prusament and Polymaker share a nozzle range. Prusament leads on documented detail.

PETG products compared
PropertyPrusament PETGPolymaker PETGBambu PETG
Nozzle range240 to 260 °C240 to 260 °CPer spool
Heat deflection68 °C69 °CPer guide
Published specFull TDSFull TDSUsage guide
Best forDocumented printsRange of blendsBambu printers
Green marks the category leader. Prusament leads on published detail.

When to pick Prusament PETG

Pick Prusament PETG when you want documented specs to tune against. The Prusament PETG datasheet lists a nozzle of 250 °C with a 10 °C margin, a heat deflection of 68 °C, and a density of 1.27 g/cm³. That detail takes the guesswork out of tuning.

When to pick Polymaker or Bambu

Pick Polymaker PETG for a wide range of blends and a heat deflection of 69 °C, per its datasheet. Pick Bambu PETG when you run a Bambu printer and want a filament tuned to its profiles and drying guidance.

Frequently asked

What is the best PETG filament?
It depends. Prusament leads on documented specs. Polymaker leads on range. Bambu leads on ecosystem fit. All three publish specs.
Is Prusament PETG the best?
For documented specs, yes. Prusament publishes a full TDS with nozzle, bed, heat deflection, and density. Other brands may suit range or ecosystem better.
Which PETG is best for a Bambu printer?
Bambu PETG, because the profiles and drying guidance are tuned to Bambu machines. Prusament and Polymaker also work well.
Do these PETG products publish datasheets?
Prusament and Polymaker publish full TDS sheets. Bambu Lab publishes a usage guide with drying and flow data.

For the material, read PETG filament or what PETG is. For the brand angle, see best PETG brand.

Related guides

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Sources & methodology

4 citations · reviewed 2026-07-09
  1. 01Polymaker PETG Technical Data Sheetaccessed 2026-07-06Tier 1
  2. 02Prusament PETG Technical Datasheetaccessed 2026-07-06Tier 1
  3. 03All3DP PETG Comprehensive Guideaccessed 2026-06-30Tier 2
  4. 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.