HDPE vs PLA
Compare HDPE and PLA filaments side-by-side. See which one is best for your 3D printing project.
HDPE
FHigh Density Polyethylene
Common recycled polymer; sometimes used for purging between temp ranges
PLA
APolylactic Acid
Easiest to print, cheap, widely available, fast, good bridges/overhangs, easy support removal
Detailed Comparison
Property
HDPE
PLA
Tier Rating
Tier F
Tier A
Family
HDPE
PLA
Nozzle Temp
220-260°C
185-235°C
Bed Temp
80-100°C
50-60°C
Enclosure
required
not needed
Cooling
Low cooling
High part cooling usually beneficial
Moisture Sensitivity
low
moderate
Strengths Comparison
HDPE Strengths
- Common recycled polymer; sometimes used for purging between temp ranges
PLA Strengths
- Easiest to print, cheap, widely available, fast, good bridges/overhangs, easy support removal
- Stiff non-composite thermoplastic, good tensile strength
Considerations
HDPE Caveats
- Extremely prone to warping, bed release, layer splitting; described as worst filament overall
PLA Caveats
- Creeps under sustained load
- Poor heat resistance, UV degradation, can shatter on drops
- Not great for sanding/gluing/painting/touch-ups
Frequently Asked Questions
Is HDPE or PLA better for 3D printing?
PLA is generally rated higher (Tier A) compared to HDPE (Tier F). However, the best choice depends on your specific needs: HDPE is best for Common recycled polymer; sometimes used for purging between temp ranges, while PLA is best for Easiest to print, cheap, widely available, fast, good bridges/overhangs, easy support removal.
What are the temperature differences between HDPE and PLA?
HDPE prints at 220-260°C nozzle / 80-100°C bed. PLA prints at 185-235°C nozzle / 50-60°C bed.
Do HDPE and PLA need an enclosure?
HDPE: required. PLA: not needed.
Which is more beginner-friendly: HDPE or PLA?
PLA is more beginner-friendly as it doesn't require an enclosure.