Semi-flexible TPU vs PLA
Compare Semi-flexible TPU and PLA filaments side-by-side so you can pick the right one for your 3D printing project.
Semi-flexible TPU
BMid-durometer TPU
Good balance for bumpers/hinges/impacty parts
PLA
APolylactic Acid
Easiest to print, cheap, widely available, fast, good bridges/overhangs, easy support removal
Detailed Comparison
Property
Semi-flexible TPU
PLA
Tier Rating
Tier B
Tier A
Family
Flexible
PLA
Nozzle Temp
210-230°C
190-220°C
Bed Temp
40-60°C
50-60°C
Enclosure
not needed
not needed
Cooling
Moderate cooling
High part cooling usually beneficial
Moisture Sensitivity
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
Semi-flexible TPU Strengths
- Good balance for bumpers/hinges/impacty parts
PLA Strengths
- Easiest to print, cheap, widely available, fast, good bridges/overhangs, easy support removal
- Stiff non-composite thermoplastic, good tensile strength
Considerations
Semi-flexible TPU Caveats
- Too stiff for some flexible uses; too soft for some rigid uses
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 Semi-flexible TPU or PLA better for 3D printing?
PLA is generally rated higher (Tier A) compared to Semi-flexible TPU (Tier B). However, the best choice depends on your specific needs: Semi-flexible TPU is best for Good balance for bumpers/hinges/impacty parts, while PLA is best for Easiest to print, cheap, widely available, fast, good bridges/overhangs, easy support removal.
What are the temperature differences between Semi-flexible TPU and PLA?
Semi-flexible TPU prints at 210-230°C nozzle / 40-60°C bed. PLA prints at 190-220°C nozzle / 50-60°C bed.
Do Semi-flexible TPU and PLA need an enclosure?
Semi-flexible TPU: not needed. PLA: not needed.
Which is more beginner-friendly: Semi-flexible TPU or PLA?
Both Semi-flexible TPU and PLA are beginner-friendly options.