PETG vs TPU

Compare PETG and TPU filaments side-by-side so you can pick the right one for your 3D printing project.

PETG vs TPU: PETG is known for tougher than pla, while TPU is known for excellent layer adhesion. TPU is easier to print; PETG is less moisture-sensitive; PETG prints at higher nozzle temperatures (230-250°C vs 200-240°C). Choose PETG for tougher than pla, or TPU for excellent layer adhesion.

Key differences at a glance

Property
PETG
TPU
Nozzle temp
230-250°C
200-240°C
Bed temp
70-90°C
30-60°C
Enclosure needed
Optional
No
Ease of printing
Moderate
Easy
Moisture sensitivity
moderate
high

PETG

A

Polyethylene Terephthalate Glycol-modified

Tougher than PLA, higher temp tolerance, more durable in real-world use

TPU

S

Thermoplastic Polyurethane

Excellent layer adhesion; extremely impact resistant; highly durable

Detailed Comparison

Property
PETG
TPU
Tier Rating
Tier A
Tier S
Family
PETG
Flexible
Nozzle Temp
230-250°C
200-240°C
Bed Temp
70-90°C
30-60°C
Enclosure
optional
not needed
Cooling
Moderate cooling; too much cooling can hurt layer adhesion
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

PETG Strengths

  • Tougher than PLA, higher temp tolerance, more durable in real-world use
  • Good clarity and low friction among easy-to-print materials

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

PETG Caveats

  • Overhangs/bridges sag; supports can be hard to remove
  • Absorbs water fairly quickly

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

What is the difference between PETG and TPU?
PETG prints at 230-250°C nozzle / 70-90°C bed (Optional enclosure, moderate moisture sensitivity). TPU prints at 200-240°C nozzle / 30-60°C bed (No enclosure, high moisture sensitivity).
Is PETG or TPU stronger?
Our dataset does not include comparable tensile strength values for both. Qualitatively, PETG is suited to tougher than pla, while TPU is suited to excellent layer adhesion.
Which prints at a higher temperature, PETG or TPU?
PETG prints at a higher temperature (230-250°C nozzle vs 200-240°C for TPU).
Is PETG or TPU better for beginners?
Both are similarly approachable: PETG (optional enclosure, moderate moisture) and TPU (no enclosure, high moisture).
Should I use PETG or TPU for flexible parts?
For flexible parts, TPU is usually the better fit (Excellent layer adhesion). Choose PETG instead when tougher than pla.

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