PETG vs ASA for 3D printing
Choose PETG for containers, bottles, and organizers; choose ASA for outdoor signage, mounts, and fixtures.
ASA — starting price
$10.00 / part
Weatherproof, UV-resistant, high-temp. For outdoor parts.
Full ASA guideSide by side
| Property | PETG | ASA |
|---|---|---|
| Strength | High, tougher than PLA | High, impact-tough |
| Flexibility | Slight | Slight |
| Heat resistance | Medium | High |
| Water / food | Food-safe and water-resistant | — |
| Finish | Glossy; slight stringing up close | Matte; can be acetone-smoothed |
| Outdoor / UV | — | Excellent — the reason to choose it |
| Density | 1.27 g/cm³ | 1.07 g/cm³ |
| Starting price | $8.99 / part | $10.00 / part |
Choose PETG when…
- Containers, bottles, and organizers
- Brackets and parts that flex without cracking
- Food-contact parts (with a food-safe finish)
- Parts that need water and chemical resistance
Reach for something else for
- Ultra-fine detail display models — PLA prints crisper
Choose ASA when…
- Outdoor signage, mounts, and fixtures
- Automotive trim and exterior parts
- Enclosures exposed to sun or rain
- Parts that must not yellow or crack outdoors
Reach for something else for
- Ultra-budget indoor prototypes — PLA is far cheaper for those
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