Ultrafuse PA vs ASA

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

Ultrafuse PA vs ASA: Ultrafuse PA is known for general use, while ASA is known for excellent uv resistance (outdoors indefinitely). Ultrafuse PA is easier to print; ASA prints at higher nozzle temperatures (220-275°C vs 240°C). Choose Ultrafuse PA for general use, or ASA for excellent uv resistance (outdoors indefinitely).

Key differences at a glance

Property
Ultrafuse PA
ASA
Nozzle temp
240°C
220-275°C
Bed temp
70°C
90-110°C
Enclosure needed
No
Recommended
Ease of printing
Easy
Moderate
Moisture sensitivity
low
moderate

Ultrafuse PA

-

Versatile 3D printing filament

ASA

A

Acrylonitrile Styrene Acrylate

Excellent UV resistance (outdoors indefinitely), tough, matte surface

Detailed Comparison

Property
Ultrafuse PA
ASA
Tier Rating
Tier null
Tier A
Family
Nylon
ASA
Nozzle Temp
240°C
220-275°C
Bed Temp
70°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 PA Strengths

    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 PA Caveats

      ASA Caveats

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

      Frequently Asked Questions

      What is the difference between Ultrafuse PA and ASA?
      Ultrafuse PA prints at 240°C nozzle / 70°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 PA or ASA stronger?
      Our dataset does not include comparable tensile strength values for both. Qualitatively, Ultrafuse PA is suited to , while ASA is suited to excellent uv resistance (outdoors indefinitely).
      Which prints at a higher temperature, Ultrafuse PA or ASA?
      ASA prints at a higher temperature (220-275°C nozzle vs 240°C for Ultrafuse PA).
      Is Ultrafuse PA or ASA better for beginners?
      Ultrafuse PA is better for beginners: enclosure is no and moisture sensitivity is low, vs recommended enclosure and moderate moisture for ASA.
      Should I use Ultrafuse PA or ASA for outdoor use?
      For outdoor use, ASA is usually the better fit (Excellent UV resistance (outdoors indefinitely)). Choose Ultrafuse PA instead when .

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