Ultrafuse rPET vs TPU
Compare Ultrafuse rPET and TPU filaments side-by-side so you can pick the right one for your 3D printing project.
Ultrafuse rPET
-Versatile 3D printing filament
TPU
SThermoplastic Polyurethane
Excellent layer adhesion; extremely impact resistant; highly durable
Detailed Comparison
Property
Ultrafuse rPET
TPU
Tier Rating
Tier null
Tier S
Family
PETG
Flexible
Nozzle Temp
235°C
200-240°C
Bed Temp
75°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 rPET 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 rPET 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 rPET or TPU better for 3D printing?
TPU is generally rated higher (Tier S) compared to Ultrafuse rPET (Tier null). However, the best choice depends on your specific needs: Ultrafuse rPET 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 rPET and TPU?
Ultrafuse rPET prints at 235°C nozzle / 75°C bed. TPU prints at 200-240°C nozzle / 30-60°C bed.
Do Ultrafuse rPET and TPU need an enclosure?
Ultrafuse rPET: not needed. TPU: not needed.
Which is more beginner-friendly: Ultrafuse rPET or TPU?
Both Ultrafuse rPET and TPU are beginner-friendly options.