Polypropylene vs PETG
Compare Polypropylene and PETG filaments side-by-side. See which one is best for your 3D printing project.
Polypropylene
FPP
Can bend without damage; very rugged; strong layer adhesion; very low density
PETG
APolyethylene Terephthalate Glycol-modified
Tougher than PLA, higher temp tolerance, more durable in real-world use
Detailed Comparison
Property
Polypropylene
PETG
Tier Rating
Tier F
Tier A
Family
PP
PETG
Nozzle Temp
220-250°C
215-270°C
Bed Temp
80-100°C
70-90°C
Enclosure
recommended
optional
Cooling
Low cooling
Moderate cooling; too much cooling can hurt layer adhesion
Moisture Sensitivity
low
moderate
Strengths Comparison
Polypropylene Strengths
- Can bend without damage; very rugged; strong layer adhesion; very low density
- Excellent chemical resistance
- Good fatigue resistance (living hinges)
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
Polypropylene Caveats
- Extremely poor bed adhesion; severe curling/warping (worse when cooling)
- Supports nearly impossible to remove due to toughness/perfect layer adhesion
- Often requires specialized build surface and setup
PETG Caveats
- Overhangs/bridges sag; supports can be hard to remove
- Absorbs water fairly quickly
Frequently Asked Questions
Is Polypropylene or PETG better for 3D printing?
PETG is generally rated higher (Tier A) compared to Polypropylene (Tier F). However, the best choice depends on your specific needs: Polypropylene is best for Can bend without damage; very rugged; strong layer adhesion; very low density, while PETG is best for Tougher than PLA, higher temp tolerance, more durable in real-world use.
What are the temperature differences between Polypropylene and PETG?
Polypropylene prints at 220-250°C nozzle / 80-100°C bed. PETG prints at 215-270°C nozzle / 70-90°C bed.
Do Polypropylene and PETG need an enclosure?
Polypropylene: recommended. PETG: optional.
Which is more beginner-friendly: Polypropylene or PETG?
PETG is more beginner-friendly as it doesn't require an enclosure.