What is PETG?#

Polyethylene terephthalate glycol-modified

All3DP does another great job of going through things

Quick summary#

PETG Pros#

• Small hurdles to print successfully
  • Suggested tuning:
    • Temperature
    • Retraction
    • May need Z-offset change that is different from PLA
• Tons of
  • colors
  • sheens and types
    • shiny
    • glitter
    • glow in the dark
• Decent impact resistance
• Glass transition temperature is higher than PLA (80C vs 60C)
• UV resistance
• Can be FDA certified for food-related objects (but do your research!)

PETG Cons#

• Requires heated build plate
• Can be very stringy
• Requires hotter nozzle temps (typically 230C-260C)
• Support printing can be very difficult
  • Cleaning supports from print can leave a lot of nubs
  • PETG doesn’t break away very well
  • Supports will be quite stringy and ugly
• Not many composite entities available (metal filled, glass, etc)

Links in no particular order#

Inland from Microcenter#

• (I choose their PETG+ blend because I find it is more consistent, just like their PLA vs PLA+):
• Local for many folks so you can browse and impulse buy (I should make this a warning)
• Color black (direct)
• Color white (direct)
• Color gray/grey (direct)
• and many more!
• (Inland brand is rebranded eSun filament)

Overture3D#

• PETG has a variety of colors
• Also check out their Rock PETG! (fact: almost exactly the same as the PLA variant! example )
• Best part: order direct and it will be shipped by Amazon :)

Proto Pasta#

• Note: most spools are 500g and not 1kg so keep that in mind
• Not many colors or composites available

Shared Information#