Polypropylene vs PETG
Compare Polypropylene and PETG filaments side-by-side so you can pick the right one for your 3D printing project.
Polypropylene vs PETG: Polypropylene is known for can bend without damage, while PETG is known for tougher than pla. PETG is easier to print; Polypropylene is less moisture-sensitive; PETG prints at higher nozzle temperatures (230-250°C vs 220-250°C). Choose Polypropylene for can bend without damage, or PETG for tougher than pla.
Key differences at a glance
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
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
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