PEKK vs PLA
Compare PEKK and PLA filaments side-by-side so you can pick the right one for your 3D printing project.
PEKK
APolyether Ketone Ketone
Nearly PEEK-class strength with far better print success rate
PLA
APolylactic Acid
Easiest to print, cheap, widely available, fast, good bridges/overhangs, easy support removal
Detailed Comparison
Property
PEKK
PLA
Tier Rating
Tier A
Tier A
Family
PEEK-family
PLA
Nozzle Temp
340-380°C
190-220°C
Bed Temp
120-160°C
50-60°C
Enclosure
required
not needed
Cooling
Minimal
High part cooling usually beneficial
Moisture Sensitivity
high
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
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
PLA Strengths
- Easiest to print, cheap, widely available, fast, good bridges/overhangs, easy support removal
- Stiff non-composite thermoplastic, good tensile strength
Considerations
PEKK Caveats
PLA Caveats
- Creeps under sustained load
- Poor heat resistance, UV degradation, can shatter on drops
- Not great for sanding/gluing/painting/touch-ups
Frequently Asked Questions
Is PEKK or PLA better for 3D printing?
PEKK is generally rated higher (Tier A) compared to PLA (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 PLA is best for Easiest to print, cheap, widely available, fast, good bridges/overhangs, easy support removal.
What are the temperature differences between PEKK and PLA?
PEKK prints at 340-380°C nozzle / 120-160°C bed. PLA prints at 190-220°C nozzle / 50-60°C bed.
Do PEKK and PLA need an enclosure?
PEKK: required. PLA: not needed.
Which is more beginner-friendly: PEKK or PLA?
PLA is more beginner-friendly as it doesn't require an enclosure.