Ultrafuse TPU-64D vs ASA

Compare Ultrafuse TPU-64D and ASA filaments side-by-side so you can pick the right one for your 3D printing project.

Ultrafuse TPU-64D vs ASA: Ultrafuse TPU-64D is known for excellent layer adhesion, while ASA is known for excellent uv resistance (outdoors indefinitely). Ultrafuse TPU-64D is easier to print; ASA prints at higher nozzle temperatures (220-275°C vs 225°C). Choose Ultrafuse TPU-64D for excellent layer adhesion, or ASA for excellent uv resistance (outdoors indefinitely).

Key differences at a glance

Property
Ultrafuse TPU-64D
ASA
Nozzle temp
225°C
220-275°C
Bed temp
40°C
90-110°C
Enclosure needed
No
Recommended
Ease of printing
Easy
Moderate
Moisture sensitivity
low
moderate

Detailed Comparison

Property
Ultrafuse TPU-64D
ASA
Tier Rating
Tier null
Tier A
Family
Flexible
ASA
Nozzle Temp
225°C
220-275°C
Bed Temp
40°C
90-110°C
Enclosure
not needed
recommended
Cooling
Low to moderate; avoid drafts
Moisture Sensitivity
low
moderate

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 TPU-64D Strengths

  • Excellent layer adhesion; extremely impact resistant; highly durable
  • Great for combat robots, tactical/rough-use parts
  • Rubber-like parts (gaskets, grips, bumpers, wheels)

ASA Strengths

  • Excellent UV resistance (outdoors indefinitely), tough, matte surface
  • Less warping than ABS; low viscosity enables very high speed printing
  • High heat tolerance (~boiling water range)

Considerations

Ultrafuse TPU-64D Caveats

  • Slow printing; retraction can cause jams (especially in Bowden setups)
  • Stringing is common
  • Very moisture sensitive; wet TPU prints poorly

ASA Caveats

  • Still off-gasses; enclosure/ventilation recommended
  • Can still warp; needs tuning

Frequently Asked Questions

What is the difference between Ultrafuse TPU-64D and ASA?
Ultrafuse TPU-64D prints at 225°C nozzle / 40°C bed (No enclosure, low moisture sensitivity). ASA prints at 220-275°C nozzle / 90-110°C bed (Recommended enclosure, moderate moisture sensitivity).
Is Ultrafuse TPU-64D or ASA stronger?
Our dataset does not include comparable tensile strength values for both. Qualitatively, Ultrafuse TPU-64D is suited to excellent layer adhesion, while ASA is suited to excellent uv resistance (outdoors indefinitely).
Which prints at a higher temperature, Ultrafuse TPU-64D or ASA?
ASA prints at a higher temperature (220-275°C nozzle vs 225°C for Ultrafuse TPU-64D).
Is Ultrafuse TPU-64D or ASA better for beginners?
Ultrafuse TPU-64D is better for beginners: enclosure is no and moisture sensitivity is low, vs recommended enclosure and moderate moisture for ASA.
Should I use Ultrafuse TPU-64D or ASA for flexible parts?
For flexible parts, Ultrafuse TPU-64D is usually the better fit (Excellent layer adhesion). Choose ASA instead when excellent uv resistance (outdoors indefinitely).

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