PEI vs ASA
Compare PEI and ASA filaments side-by-side. See which one is best for your 3D printing project.
PEI
-Versatile 3D printing filament
ASA
AAcrylonitrile Styrene Acrylate
Excellent UV resistance (outdoors indefinitely), tough, matte surface
Detailed Comparison
Property
PEI
ASA
Tier Rating
Tier null
Tier A
Family
PEI
ASA
Nozzle Temp
430°C
220-275°C
Bed Temp
150°C
90-110°C
Enclosure
not needed
recommended
Cooling
Low to moderate; avoid drafts
Moisture Sensitivity
low
moderate
Strengths Comparison
PEI Strengths
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 Caveats
ASA Caveats
- Still off-gasses; enclosure/ventilation recommended
- Can still warp; needs tuning
Frequently Asked Questions
Is PEI or ASA better for 3D printing?
ASA is generally rated higher (Tier A) compared to PEI (Tier null). However, the best choice depends on your specific needs: PEI is best for various applications, while ASA is best for Excellent UV resistance (outdoors indefinitely), tough, matte surface.
What are the temperature differences between PEI and ASA?
PEI prints at 430°C nozzle / 150°C bed. ASA prints at 220-275°C nozzle / 90-110°C bed.
Do PEI and ASA need an enclosure?
PEI: not needed. ASA: recommended.
Which is more beginner-friendly: PEI or ASA?
PEI is more beginner-friendly as it doesn't require an enclosure.