PLA vs TPU
Compare PLA and TPU filaments side-by-side so you can pick the right one for your 3D printing project.
PLA
APolylactic Acid
Easiest to print, cheap, widely available, fast, good bridges/overhangs, easy support removal
TPU
SThermoplastic Polyurethane
Excellent layer adhesion; extremely impact resistant; highly durable
Detailed Comparison
Property
PLA
TPU
Tier Rating
Tier A
Tier S
Family
PLA
Flexible
Nozzle Temp
190-220°C
200-240°C
Bed Temp
50-60°C
30-60°C
Enclosure
not needed
not needed
Cooling
High part cooling usually beneficial
Moderate cooling
Moisture Sensitivity
moderate
high
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
PLA Strengths
- Easiest to print, cheap, widely available, fast, good bridges/overhangs, easy support removal
- Stiff non-composite thermoplastic, good tensile strength
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)
Considerations
PLA Caveats
- Creeps under sustained load
- Poor heat resistance, UV degradation, can shatter on drops
- Not great for sanding/gluing/painting/touch-ups
TPU Caveats
- Slow printing; retraction can cause jams (especially in Bowden setups)
- Stringing is common
- Very moisture sensitive; wet TPU prints poorly
Frequently Asked Questions
Is PLA or TPU 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: PLA is best for Easiest to print, cheap, widely available, fast, good bridges/overhangs, easy support removal, while TPU is best for Excellent layer adhesion; extremely impact resistant; highly durable.
What are the temperature differences between PLA and TPU?
PLA prints at 190-220°C nozzle / 50-60°C bed. TPU prints at 200-240°C nozzle / 30-60°C bed.
Do PLA and TPU need an enclosure?
PLA: not needed. TPU: not needed.
Which is more beginner-friendly: PLA or TPU?
Both PLA and TPU are beginner-friendly options.