Ultrafuse PET vs TPU
Compare Ultrafuse PET and TPU filaments side-by-side so you can pick the right one for your 3D printing project.
Ultrafuse PET
-Versatile 3D printing filament
TPU
SThermoplastic Polyurethane
Excellent layer adhesion; extremely impact resistant; highly durable
Detailed Comparison
Property
Ultrafuse PET
TPU
Tier Rating
Tier null
Tier S
Family
PETG
Flexible
Nozzle Temp
215°C
200-240°C
Bed Temp
70°C
30-60°C
Enclosure
not needed
not needed
Cooling
Moderate cooling
Moisture Sensitivity
low
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
Ultrafuse PET Strengths
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
Ultrafuse PET Caveats
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 Ultrafuse PET or TPU better for 3D printing?
TPU is generally rated higher (Tier S) compared to Ultrafuse PET (Tier null). However, the best choice depends on your specific needs: Ultrafuse PET is best for various applications, while TPU is best for Excellent layer adhesion; extremely impact resistant; highly durable.
What are the temperature differences between Ultrafuse PET and TPU?
Ultrafuse PET prints at 215°C nozzle / 70°C bed. TPU prints at 200-240°C nozzle / 30-60°C bed.
Do Ultrafuse PET and TPU need an enclosure?
Ultrafuse PET: not needed. TPU: not needed.
Which is more beginner-friendly: Ultrafuse PET or TPU?
Both Ultrafuse PET and TPU are beginner-friendly options.