Tier List

Glass-Filled Nylon

GFPA • Polyamide + Glass Fiber (PA6-GF or PA12-GF)

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One of the modern world's most important materials. From chainsaws to handguns, heavy-duty gizmos are made practical by injection molding this exact material. A viable alternative to machined aluminum with the right settings.

compositeEnclosure RequiredHardened NozzleDry StorageBased on Nylon
Print Settings
Print Temp260-290°C
Bed Temp80-110°C
Enclosure:Required
Material Properties
Strength92
Flexibility15
Heat Resistance88
Resistance Ratings
UV Resistance
Medium
Chemical Resistance
High
Humidity Sensitivity
High
Usability
Ease of Printing
(3/5)
Price Tier
$$$(Expensive)
Requires hardened nozzle
Requires dry storage
Pros
  • Massively stiffer than pure nylon
  • Extreme heat resistance
  • Impact and abrasion resistant
  • Warps much less than pure nylon
  • Professional-grade results
Cons
  • Requires hardened nozzle (tungsten/ruby)
  • Needs enclosed chamber
  • Very abrasive on drive gears
  • Expensive
  • Still needs dry storage
Use Cases
Industrial machineryHigh-stress toolsAutomotive partsOutdoor equipmentLoad-bearing structures

Also known as: glass nylon, gf pa, pa6 gf, pa12 gf, glass filled polyamide

Data sourced from Zack Freedman / Voidstar Lab