filament.swatchThe Workbench Reference
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Polymaker PolyLite PETG vs SUNLU PETG

From the SUNLU PETG review: PolyLite is more consistent spool to spool and strings less out of the bag; SUNLU does the same job for meaningfully less money.

★ Best overall Polymaker PolyLite PETG Polymaker · PETG
SUNLU PETG SUNLU · PETG
Measured wins
Polymaker PolyLite PETG: 1 SUNLU PETG: 0
Spec Polymaker PolyLite PETGSUNLU PETG
Overview
Material PETG PETG
Manufacturer Polymaker SUNLU
Diameter 1.75 mm 1.75 mm
Thermal
Print temp 230 to 260°C 220 to 250°C
Bed temp 70 to 80°C 60 to 80°C
Warping low low
Quality
Layer adhesion 5/5 5/5
Bed adhesion 4/5 4/5
Stringing resistance 3/5 3/5
Verdict
Overall rating 4.3/5 4.2/5
Price / kg — —

How they differ on the data

Polymaker PolyLite PETG runs 10°C hotter on the nozzle (window midpoints 245°C and 235°C), and the two windows share 20°C of range, so one profile can cover both. Polymaker PolyLite PETG runs 5°C hotter on the bed (window midpoints 75°C and 70°C), and the two windows share 10°C of range, so one profile can cover both. SUNLU PETG lists the wider window (20°C against 10°C).

Which one for the job

Pick Polymaker PolyLite PETG for mechanical parts.

Pick SUNLU PETG for prototyping.