Fiberlogy FiberFlex 40D vs ASA
Compare Fiberlogy FiberFlex 40D and ASA filaments side-by-side so you can pick the right one for your 3D printing project.
Fiberlogy FiberFlex 40D vs ASA: Fiberlogy FiberFlex 40D is known for excellent layer adhesion, while ASA is known for excellent uv resistance (outdoors indefinitely). Fiberlogy FiberFlex 40D is easier to print; ASA prints at higher nozzle temperatures (220-275°C vs 230°C). Choose Fiberlogy FiberFlex 40D for excellent layer adhesion, or ASA for excellent uv resistance (outdoors indefinitely).
Key differences at a glance
Fiberlogy FiberFlex 40D
-Excellent layer adhesion; extremely impact resistant; highly durable
ASA
AAcrylonitrile Styrene Acrylate
Excellent UV resistance (outdoors indefinitely), tough, matte surface
Detailed Comparison
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
Fiberlogy FiberFlex 40D 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
Fiberlogy FiberFlex 40D 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