POM vs PLA
Compare POM and PLA filaments side-by-side so you can pick the right one for your 3D printing project.
POM vs PLA: POM is known for very low friction, while PLA is known for easiest to print. PLA is easier to print; POM is less moisture-sensitive; POM prints at higher nozzle temperatures (220-260°C vs 190-220°C). Choose POM for very low friction, or PLA for easiest to print.
Key differences at a glance
POM
FAcetal / Delrin / Polyoxymethylene
Very low friction, stiff, easy to machine (in CNC contexts)
PLA
APolylactic Acid
Easiest to print, cheap, widely available, fast, good bridges/overhangs, easy support removal
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
PLA Strengths
- Easiest to print, cheap, widely available, fast, good bridges/overhangs, easy support removal
- Stiff non-composite thermoplastic, good tensile strength
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
PLA Caveats
- Creeps under sustained load
- Poor heat resistance, UV degradation, can shatter on drops
- Not great for sanding/gluing/painting/touch-ups