Soft TPU vs TPU
Compare Soft TPU and TPU filaments side-by-side so you can pick the right one for your 3D printing project.
Soft TPU
CLow durometer TPU (~80A)
Very flexible
TPU
SThermoplastic Polyurethane
Excellent layer adhesion; extremely impact resistant; highly durable
Detailed Comparison
Property
Soft TPU
TPU
Tier Rating
Tier C
Tier S
Family
Flexible
Flexible
Nozzle Temp
200-220°C
200-240°C
Bed Temp
30-50°C
30-60°C
Enclosure
not needed
not needed
Cooling
Low cooling
Moderate cooling
Moisture Sensitivity
high
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
Soft TPU Strengths
- Very flexible
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
Soft TPU Caveats
- Can tangle around drive gear
- Uncomfortable for wearables (doesn't breathe; gets sweaty)
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 Soft TPU or TPU better for 3D printing?
TPU is generally rated higher (Tier S) compared to Soft TPU (Tier C). However, the best choice depends on your specific needs: Soft TPU is best for Very flexible, while TPU is best for Excellent layer adhesion; extremely impact resistant; highly durable.
What are the temperature differences between Soft TPU and TPU?
Soft TPU prints at 200-220°C nozzle / 30-50°C bed. TPU prints at 200-240°C nozzle / 30-60°C bed.
Do Soft TPU and TPU need an enclosure?
Soft TPU: not needed. TPU: not needed.
Which is more beginner-friendly: Soft TPU or TPU?
Both Soft TPU and TPU are beginner-friendly options.