Glass-filled Nylon vs PLA
Compare Glass-filled Nylon and PLA filaments side-by-side so you can pick the right one for your 3D printing project.
Glass-filled Nylon
SPA-GF / GFPA
Massively stiffer/tougher/more heat & abrasion resistant than nylon
PLA
APolylactic Acid
Easiest to print, cheap, widely available, fast, good bridges/overhangs, easy support removal
Detailed Comparison
Property
Glass-filled Nylon
PLA
Tier Rating
Tier S
Tier A
Family
Nylon (PA)
PLA
Nozzle Temp
260-290°C
190-220°C
Bed Temp
80-100°C
50-60°C
Enclosure
required
not needed
Cooling
Low cooling
High part cooling usually beneficial
Moisture Sensitivity
very high
moderate
Green marks the generally easier or more forgiving option in that row, based on tier, enclosure needs, and moisture sensitivity. It is not always the better choice for a specific job, so weigh it against what your project actually needs.
Strengths Comparison
Glass-filled Nylon Strengths
- Massively stiffer/tougher/more heat & abrasion resistant than nylon
- Warping reduced enough to be fairly easy to print (with correct setup)
- Viable alternative to machined aluminum for some parts
PLA Strengths
- Easiest to print, cheap, widely available, fast, good bridges/overhangs, easy support removal
- Stiff non-composite thermoplastic, good tensile strength
Considerations
Glass-filled Nylon Caveats
- Higher print temps; hardware wear if not equipped
PLA Caveats
- Creeps under sustained load
- Poor heat resistance, UV degradation, can shatter on drops
- Not great for sanding/gluing/painting/touch-ups
Frequently Asked Questions
Is Glass-filled Nylon or PLA better for 3D printing?
Glass-filled Nylon is generally rated higher (Tier S) compared to PLA (Tier A). However, the best choice depends on your specific needs: Glass-filled Nylon is best for Massively stiffer/tougher/more heat & abrasion resistant than nylon, while PLA is best for Easiest to print, cheap, widely available, fast, good bridges/overhangs, easy support removal.
What are the temperature differences between Glass-filled Nylon and PLA?
Glass-filled Nylon prints at 260-290°C nozzle / 80-100°C bed. PLA prints at 190-220°C nozzle / 50-60°C bed.
Do Glass-filled Nylon and PLA need an enclosure?
Glass-filled Nylon: required. PLA: not needed.
Which is more beginner-friendly: Glass-filled Nylon or PLA?
PLA is more beginner-friendly as it doesn't require an enclosure.