Tier List

Glass-Filled Polypropylene

GFPP • Polypropylene + Glass Fiber

B

One of toughest, most durable all-weather filaments on mid-range printers. Unnervingly lightweight with tons of filament per spool. But even more difficult to print than regular PP - peels easier, curls more aggressively.

compositeEnclosure RequiredHardened NozzleBased on Polypropylene
Warnings
  • Unbelievably obnoxious to print
Print Settings
Print Temp230-260°C
Bed Temp80-100°C
Enclosure:Required
Material Properties
Strength72
Flexibility25
Heat Resistance70
Resistance Ratings
UV Resistance
High
Chemical Resistance
High
Humidity Sensitivity
None
Usability
Ease of Printing
(1/5)
Price Tier
$$(Moderate)
Requires hardened nozzle
Pros
  • Extremely tough
  • All-weather resistant
  • Lightweight
  • Chemical resistant
  • More filament per kg
Cons
  • Terrible bed adhesion
  • Curls aggressively
  • Needs direct drive
  • Needs enclosure
  • Hardened nozzle required
Use Cases
Outdoor equipmentChemical containersLightweight partsAutomotive

Also known as: glass pp, glass polypropylene

Data sourced from Zack Freedman / Voidstar Lab