TPU vs PLA
Compare TPU and PLA filaments side-by-side so you can pick the right one for your 3D printing project.
TPU
SThermoplastic Polyurethane
Excellent layer adhesion; extremely impact resistant; highly durable
PLA
APolylactic Acid
Easiest to print, cheap, widely available, fast, good bridges/overhangs, easy support removal
Detailed Comparison
Property
TPU
PLA
Tier Rating
Tier S
Tier A
Family
Flexible
PLA
Nozzle Temp
200-240°C
190-220°C
Bed Temp
30-60°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
TPU Strengths
- Excellent layer adhesion; extremely impact resistant; highly durable
- Great for combat robots, tactical/rough-use parts
- Rubber-like parts (gaskets, grips, bumpers, wheels)
PLA Strengths
- Easiest to print, cheap, widely available, fast, good bridges/overhangs, easy support removal
- Stiff non-composite thermoplastic, good tensile strength
Considerations
TPU Caveats
- Slow printing; retraction can cause jams (especially in Bowden setups)
- Stringing is common
- Very moisture sensitive; wet TPU prints poorly
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 TPU or PLA better for 3D printing?
TPU is generally rated higher (Tier S) compared to PLA (Tier A). However, the best choice depends on your specific needs: TPU is best for Excellent layer adhesion; extremely impact resistant; highly durable, while PLA is best for Easiest to print, cheap, widely available, fast, good bridges/overhangs, easy support removal.
What are the temperature differences between TPU and PLA?
TPU prints at 200-240°C nozzle / 30-60°C bed. PLA prints at 190-220°C nozzle / 50-60°C bed.
Do TPU and PLA need an enclosure?
TPU: not needed. PLA: not needed.
Which is more beginner-friendly: TPU or PLA?
Both TPU and PLA are beginner-friendly options.