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3D Printing Filaments
Filament showdown

ASA vs PETG: which filament should you use?

Per-kg price, temperatures, food contact and a worked cost example for the same part printed in ASA and PETG. Plus a verdict on the five dimensions that matter when picking between them.

Specs side by side

ASA

Typical price
~$30.00/kg
Print temperature
240–260 °C
Bed temperature
100–110 °C
Enclosed chamber
Recommended
Food-safe
No
Difficulty
★★★★☆

PETG

Typical price
~$25.00/kg
Print temperature
230–250 °C
Bed temperature
70–80 °C
Enclosed chamber
Optional
Food-safe
Yes
Difficulty
★★☆☆☆

Same part, different filament

50 g part, 6 h print time on a Bambu Lab A1 (the reference printer at 130 W) with 8% failure rate. Only the filament price changes between columns.

ASA

  • Filament$1.50
  • Energy$0.14
  • Unit Cost$1.93
  • Final Consumer Price$8.41

PETG

  • Filament$1.25
  • Energy$0.14
  • Unit Cost$1.66
  • Final Consumer Price$7.23

Verdict by dimension

  • Cheaper per kg

    PETG

    PETG averages $25.00/kg vs $30.00 for ASA — every gram you print costs less.

  • Easier to print

    PETG

    PETG is rated 2/5 difficulty vs 4/5 for ASA — fewer failed prints while you tune.

  • Lower print temperature

    PETG

    PETG prints at 230–250 °C vs 240–260 °C for ASA — less wear on the hotend and easier on basic printers.

  • Open-frame friendly

    PETG

    PETG prints reliably without an enclosed chamber; ASA warps or cracks without one.

  • Food contact

    PETG

    PETG is rated Yes for food contact, while ASA is rated No.

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