PEI 9085 vs ASA
Compare PEI 9085 and ASA filaments side-by-side so you can pick the right one for your 3D printing project.
PEI 9085 vs ASA: PEI 9085 is known for very strong, while ASA is known for excellent uv resistance (outdoors indefinitely). ASA is easier to print; PEI 9085 prints at higher nozzle temperatures (350-400°C vs 220-275°C). Choose PEI 9085 for very strong, or ASA for excellent uv resistance (outdoors indefinitely).
Key differences at a glance
PEI 9085
AUltem 9085
Very strong, stable, and safe superpolymer; low thermal expansion enables good dimensional accuracy
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
PEI 9085 Strengths
- Very strong, stable, and safe superpolymer; low thermal expansion enables good dimensional accuracy
- Once setup is met, prints relatively friendly
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
PEI 9085 Caveats
- Setup requirements too extreme for S tier
- Cannot print on PEI-coated plate repeatedly (bonding/plate damage risk)
ASA Caveats
- Still off-gasses; enclosure/ventilation recommended
- Can still warp; needs tuning