Glass-filled Polypropylene vs PLA
Compare Glass-filled Polypropylene and PLA filaments side-by-side so you can pick the right one for your 3D printing project.
Glass-filled Polypropylene
BGFPP / PP-GF
Very tough, durable, all-weather, extremely lightweight
PLA
APolylactic Acid
Easiest to print, cheap, widely available, fast, good bridges/overhangs, easy support removal
Detailed Comparison
Property
Glass-filled Polypropylene
PLA
Tier Rating
Tier B
Tier A
Family
PP
PLA
Nozzle Temp
230-260°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
low
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 Polypropylene Strengths
- Very tough, durable, all-weather, extremely lightweight
- Industrial-relevant material properties
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 Polypropylene Caveats
- Even harder to print than PP; peels/curls more aggressively
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 Polypropylene or PLA better for 3D printing?
PLA is generally rated higher (Tier A) compared to Glass-filled Polypropylene (Tier B). However, the best choice depends on your specific needs: Glass-filled Polypropylene is best for Very tough, durable, all-weather, extremely lightweight, 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 Polypropylene and PLA?
Glass-filled Polypropylene prints at 230-260°C nozzle / 80-100°C bed. PLA prints at 190-220°C nozzle / 50-60°C bed.
Do Glass-filled Polypropylene and PLA need an enclosure?
Glass-filled Polypropylene: required. PLA: not needed.
Which is more beginner-friendly: Glass-filled Polypropylene or PLA?
PLA is more beginner-friendly as it doesn't require an enclosure.