PLA vs PETG vs ASA/ABS
Which filament fits which print.
PLA — the default
The most-printed plastic, for good reason: cheap, easy, clean surface finish.
- Best for: display pieces, props, miniatures, articulated prints, gifts, anything indoors.
- Strength: stiff but brittle. Snaps under sudden impact rather than bending.
- Heat resistance: poor — softens around 60 °C. Do not leave PLA prints in a parked car in summer.
- Finish: smooth, takes paint well after light sanding.
- Price: cheapest of the three.
PETG — the everyday workhorse
A step up in toughness without giving up much print quality.
- Best for: outdoor parts, mechanical pieces, food-contact surfaces (with food-safe filament), parts that need to flex without snapping.
- Strength: tougher than PLA, slightly flexible, doesn’t shatter.
- Heat resistance: good — holds up around 70–80 °C.
- UV / weather: much better than PLA. Survives sun and rain.
- Finish: glossy, slightly stringy in fine detail. Good enough for functional parts, second choice for display.
- Price: roughly 20% more than PLA.
ASA / ABS — the engineering option
What car bumpers and Lego bricks are made of. We use these for parts that have to live in hot, sunny, or industrial conditions.
- Best for: car accessories, dashboard mounts, garden tools, parts that get hot or live in direct sun for years.
- Strength: tough and impact-resistant, slightly flexible.
- Heat resistance: excellent — holds up around 95–105 °C.
- UV / weather: ASA is built for outdoor use. ABS is fine indoors but yellows in sun.
- Finish: matte. Sands and paints beautifully. Can be vapor-smoothed for a glossy finish.
- Price: 30–50% more than PLA. Slightly slower to print.
Quick picker
| Use case | Pick |
|---|---|
| Display shelf, costume prop | PLA |
| Articulated dragon, fidget toy | PLA |
| Garden tool, outdoor mount | PETG or ASA |
| Car dashboard part | ASA |
| Functional bracket, indoor | PETG |
| Painted miniature | PLA |
| Hot-water-adjacent (kettle handle, oven tool) | Not 3D-printed |
Not sure? Tell us what the print is for — we’ll recommend a material and explain the trade-off.