Extrudr Flex Hard vs ASA

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

Extrudr Flex Hard vs ASA: Extrudr Flex Hard is known for excellent layer adhesion, while ASA is known for excellent uv resistance (outdoors indefinitely). Extrudr Flex Hard is easier to print; ASA prints at higher nozzle temperatures (220-275°C vs 240°C). Choose Extrudr Flex Hard for excellent layer adhesion, or ASA for excellent uv resistance (outdoors indefinitely).

Key differences at a glance

Property
Extrudr Flex Hard
ASA
Nozzle temp
240°C
220-275°C
Bed temp
50°C
90-110°C
Enclosure needed
No
Recommended
Ease of printing
Easy
Moderate
Moisture sensitivity
low
moderate

Extrudr Flex Hard

-

Excellent layer adhesion; extremely impact resistant; highly durable

ASA

A

Acrylonitrile Styrene Acrylate

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

Detailed Comparison

Property
Extrudr Flex Hard
ASA
Tier Rating
Tier null
Tier A
Family
Flexible
ASA
Nozzle Temp
240°C
220-275°C
Bed Temp
50°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

Extrudr Flex Hard 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

Extrudr Flex Hard 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 Extrudr Flex Hard and ASA?
Extrudr Flex Hard prints at 240°C nozzle / 50°C bed (No enclosure, low moisture sensitivity). ASA prints at 220-275°C nozzle / 90-110°C bed (Recommended enclosure, moderate moisture sensitivity).
Is Extrudr Flex Hard or ASA stronger?
Our dataset does not include comparable tensile strength values for both. Qualitatively, Extrudr Flex Hard is suited to excellent layer adhesion, while ASA is suited to excellent uv resistance (outdoors indefinitely).
Which prints at a higher temperature, Extrudr Flex Hard or ASA?
ASA prints at a higher temperature (220-275°C nozzle vs 240°C for Extrudr Flex Hard).
Is Extrudr Flex Hard or ASA better for beginners?
Extrudr Flex Hard is better for beginners: enclosure is no and moisture sensitivity is low, vs recommended enclosure and moderate moisture for ASA.
Should I use Extrudr Flex Hard or ASA for flexible parts?
For flexible parts, Extrudr Flex Hard is usually the better fit (Excellent layer adhesion). Choose ASA instead when excellent uv resistance (outdoors indefinitely).

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