POM vs PETG
Compare POM and PETG filaments side-by-side so you can pick the right one for your 3D printing project.
POM vs PETG: POM is known for very low friction, while PETG is known for tougher than pla. PETG is easier to print; POM is less moisture-sensitive. Choose POM for very low friction, or PETG for tougher than pla.
Key differences at a glance
POM
FAcetal / Delrin / Polyoxymethylene
Very low friction, stiff, easy to machine (in CNC contexts)
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
POM Strengths
- Very low friction, stiff, easy to machine (in CNC contexts)
- Low friction, wear parts, gears, bushings
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
POM Caveats
- Near-zero bed adhesion; requires mechanical anchoring to bed surface
- Layer splitting; needs heated enclosure and very slow printing
- Heat decomposition can release formaldehyde (high hazard)
- Often outclassed by nylon for printable low-friction parts
PETG Caveats
- Overhangs/bridges sag; supports can be hard to remove
- Absorbs water fairly quickly