PEKK vs PETG
Compare PEKK and PETG 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
PETG
APolyethylene Terephthalate Glycol-modified
Tougher than PLA, higher temp tolerance, more durable in real-world use
Detailed Comparison
Property
PEKK
PETG
Tier Rating
Tier A
Tier A
Family
PEEK-family
PETG
Nozzle Temp
340-380°C
215-270°C
Bed Temp
120-160°C
70-90°C
Enclosure
required
optional
Cooling
Minimal
Moderate cooling; too much cooling can hurt layer adhesion
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
PETG Strengths
- Tougher than PLA, higher temp tolerance, more durable in real-world use
- Good clarity and low friction among easy-to-print materials
Considerations
PEKK Caveats
PETG Caveats
- Overhangs/bridges sag; supports can be hard to remove
- Absorbs water fairly quickly
Frequently Asked Questions
Is PEKK or PETG better for 3D printing?
PEKK is generally rated higher (Tier A) compared to PETG (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 PETG is best for Tougher than PLA, higher temp tolerance, more durable in real-world use.
What are the temperature differences between PEKK and PETG?
PEKK prints at 340-380°C nozzle / 120-160°C bed. PETG prints at 215-270°C nozzle / 70-90°C bed.
Do PEKK and PETG need an enclosure?
PEKK: required. PETG: optional.
Which is more beginner-friendly: PEKK or PETG?
PETG is more beginner-friendly as it doesn't require an enclosure.