ASA vs Nylon PA6

Compare ASA and Nylon PA6 filaments side-by-side so you can pick the right one for your 3D printing project.

ASA vs Nylon PA6: ASA is known for excellent uv resistance (outdoors indefinitely), while Nylon PA6 is known for exceptional strength. ASA is easier to print; Nylon PA6 prints at higher nozzle temperatures (240-290°C vs 220-275°C). Choose ASA for excellent uv resistance (outdoors indefinitely), or Nylon PA6 for exceptional strength.

Key differences at a glance

Property
ASA
Nylon PA6
Nozzle temp
220-275°C
240-290°C
Bed temp
90-110°C
70-110°C
Enclosure needed
Recommended
Required
Ease of printing
Moderate
Difficult
Moisture sensitivity
moderate
very high

ASA

A

Acrylonitrile Styrene Acrylate

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

Nylon PA6

B

Polyamide 6

Exceptional strength, very strong layer bonding, flexible and durable

Detailed Comparison

Property
ASA
Nylon PA6
Tier Rating
Tier A
Tier B
Family
ASA
Nylon (PA)
Nozzle Temp
220-275°C
240-290°C
Bed Temp
90-110°C
70-110°C
Enclosure
recommended
required
Cooling
Low to moderate; avoid drafts
Low to moderate
Moisture Sensitivity
moderate
very 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

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)

Nylon PA6 Strengths

  • Exceptional strength, very strong layer bonding, flexible and durable
  • High heat tolerance; low friction for mechanisms

Considerations

ASA Caveats

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

Nylon PA6 Caveats

  • Extremely hygroscopic; can waterlog during a print
  • Warps strongly; can pull plates off beds
  • Over-drying can make it brittle

Frequently Asked Questions

What is the difference between ASA and Nylon PA6?
ASA prints at 220-275°C nozzle / 90-110°C bed (Recommended enclosure, moderate moisture sensitivity). Nylon PA6 prints at 240-290°C nozzle / 70-110°C bed (Required enclosure, very high moisture sensitivity).
Is ASA or Nylon PA6 stronger?
Our dataset does not include comparable tensile strength values for both. Qualitatively, ASA is suited to excellent uv resistance (outdoors indefinitely), while Nylon PA6 is suited to exceptional strength.
Which prints at a higher temperature, ASA or Nylon PA6?
Nylon PA6 prints at a higher temperature (240-290°C nozzle vs 220-275°C for ASA).
Is ASA or Nylon PA6 better for beginners?
ASA is better for beginners: enclosure is recommended and moisture sensitivity is moderate, vs required enclosure and very high moisture for Nylon PA6.
Should I use ASA or Nylon PA6 for flexible parts?
For flexible parts, ASA is usually the better fit (Excellent UV resistance (outdoors indefinitely)). Choose Nylon PA6 instead when exceptional strength.

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