Nylon PA6 vs ASA

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

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

Key differences at a glance

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

Nylon PA6

B

Polyamide 6

Exceptional strength, very strong layer bonding, flexible and durable

ASA

A

Acrylonitrile Styrene Acrylate

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

Detailed Comparison

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

Nylon PA6 Strengths

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

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

Nylon PA6 Caveats

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

ASA Caveats

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

Frequently Asked Questions

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

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