PEKK vs ASA
Compare PEKK and ASA filaments side-by-side. See which one is best for your 3D printing project.
PEKK
APolyether Ketone Ketone
Nearly PEEK-class strength with far better print success rate
ASA
AAcrylonitrile Styrene Acrylate
Excellent UV resistance (outdoors indefinitely), tough, matte surface
Detailed Comparison
Property
PEKK
ASA
Tier Rating
Tier A
Tier A
Family
PEEK-family
ASA
Nozzle Temp
340-380°C
220-275°C
Bed Temp
120-160°C
90-110°C
Enclosure
required
recommended
Cooling
Minimal
Low to moderate; avoid drafts
Moisture Sensitivity
high
moderate
Strengths Comparison
PEKK Strengths
- Nearly PEEK-class strength with far better print success rate
- Described as one of the easiest high-end polymers to print once equipment checks pass
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
PEKK Caveats
ASA Caveats
- Still off-gasses; enclosure/ventilation recommended
- Can still warp; needs tuning
Frequently Asked Questions
Is PEKK or ASA better for 3D printing?
PEKK is generally rated higher (Tier A) compared to ASA (Tier A). However, the best choice depends on your specific needs: PEKK is best for Nearly PEEK-class strength with far better print success rate, while ASA is best for Excellent UV resistance (outdoors indefinitely), tough, matte surface.
What are the temperature differences between PEKK and ASA?
PEKK prints at 340-380°C nozzle / 120-160°C bed. ASA prints at 220-275°C nozzle / 90-110°C bed.
Do PEKK and ASA need an enclosure?
PEKK: required. ASA: recommended.
Which is more beginner-friendly: PEKK or ASA?
Neither is particularly beginner-friendly - both typically require an enclosure.