HDPE vs ASA
Compare HDPE and ASA 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
ASA
AAcrylonitrile Styrene Acrylate
Excellent UV resistance (outdoors indefinitely), tough, matte surface
Detailed Comparison
Property
HDPE
ASA
Tier Rating
Tier F
Tier A
Family
HDPE
ASA
Nozzle Temp
220-260°C
220-275°C
Bed Temp
80-100°C
90-110°C
Enclosure
required
recommended
Cooling
Low cooling
Low to moderate; avoid drafts
Moisture Sensitivity
low
moderate
Strengths Comparison
HDPE Strengths
- Common recycled polymer; sometimes used for purging between temp ranges
ASA Strengths
- Excellent UV resistance (outdoors indefinitely), tough, matte surface
- Less warping than ABS; low viscosity enables very high speed printing
- High heat tolerance (~boiling water range)
Considerations
HDPE Caveats
- Extremely prone to warping, bed release, layer splitting; described as worst filament overall
ASA Caveats
- Still off-gasses; enclosure/ventilation recommended
- Can still warp; needs tuning
Frequently Asked Questions
Is HDPE or ASA better for 3D printing?
ASA 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 ASA is best for Excellent UV resistance (outdoors indefinitely), tough, matte surface.
What are the temperature differences between HDPE and ASA?
HDPE prints at 220-260°C nozzle / 80-100°C bed. ASA prints at 220-275°C nozzle / 90-110°C bed.
Do HDPE and ASA need an enclosure?
HDPE: required. ASA: recommended.
Which is more beginner-friendly: HDPE or ASA?
Neither is particularly beginner-friendly - both typically require an enclosure.