HDPE vs PETG

Compare HDPE and PETG filaments side-by-side. See which one is best for your 3D printing project.

Detailed Comparison

Property
HDPE
PETG
Tier Rating
Tier F
Tier A
Family
HDPE
PETG
Nozzle Temp
220-260°C
215-270°C
Bed Temp
80-100°C
70-90°C
Enclosure
required
optional
Cooling
Low cooling
Moderate cooling; too much cooling can hurt layer adhesion
Moisture Sensitivity
low
moderate

Strengths Comparison

HDPE Strengths

  • Common recycled polymer; sometimes used for purging between temp ranges

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

HDPE Caveats

  • Extremely prone to warping, bed release, layer splitting; described as worst filament overall

PETG Caveats

  • Overhangs/bridges sag; supports can be hard to remove
  • Absorbs water fairly quickly

Frequently Asked Questions

Is HDPE or PETG better for 3D printing?
PETG 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 PETG is best for Tougher than PLA, higher temp tolerance, more durable in real-world use.
What are the temperature differences between HDPE and PETG?
HDPE prints at 220-260°C nozzle / 80-100°C bed. PETG prints at 215-270°C nozzle / 70-90°C bed.
Do HDPE and PETG need an enclosure?
HDPE: required. PETG: optional.
Which is more beginner-friendly: HDPE or PETG?
PETG is more beginner-friendly as it doesn't require an enclosure.

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