PEI 9085 vs PETG
Compare PEI 9085 and PETG filaments side-by-side. See which one is best for your 3D printing project.
PEI 9085
AUltem 9085
Very strong, stable, and safe superpolymer; low thermal expansion enables good dimensional accuracy
PETG
APolyethylene Terephthalate Glycol-modified
Tougher than PLA, higher temp tolerance, more durable in real-world use
Detailed Comparison
Property
PEI 9085
PETG
Tier Rating
Tier A
Tier A
Family
PEI
PETG
Nozzle Temp
350-400°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
moderate
moderate
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
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
PEI 9085 Caveats
- Setup requirements too extreme for S tier
- Cannot print on PEI-coated plate repeatedly (bonding/plate damage risk)
PETG Caveats
- Overhangs/bridges sag; supports can be hard to remove
- Absorbs water fairly quickly
Frequently Asked Questions
Is PEI 9085 or PETG better for 3D printing?
PEI 9085 is generally rated higher (Tier A) compared to PETG (Tier A). However, the best choice depends on your specific needs: PEI 9085 is best for Very strong, stable, and safe superpolymer; low thermal expansion enables good dimensional accuracy, while PETG is best for Tougher than PLA, higher temp tolerance, more durable in real-world use.
What are the temperature differences between PEI 9085 and PETG?
PEI 9085 prints at 350-400°C nozzle / 120-160°C bed. PETG prints at 215-270°C nozzle / 70-90°C bed.
Do PEI 9085 and PETG need an enclosure?
PEI 9085: required. PETG: optional.
Which is more beginner-friendly: PEI 9085 or PETG?
PETG is more beginner-friendly as it doesn't require an enclosure.