Short answer
Choose PLA for the easiest and cheapest print. Choose PETG if you need parts that must handle heat, moisture and impact. The extra cost is small: about €0.11 for a 50 gram print.
Comparison
| Feature | PLA | PETG |
|---|---|---|
| Price per kg (indicative) | €20 | €22 |
| Filament for 50 g / 100 g | €1.00 / €2.00 | €1.10 / €2.20 |
| Nozzle temperature | 190-220 °C | 220-250 °C |
| Bed temperature (guideline) | about 50-60 °C | about 70-85 °C |
| Softens from (guideline) | about 55-60 °C | about 75-80 °C |
| Enclosure needed | No | No |
| Character | Stiff, but more brittle | Tougher, bends before it breaks |
| Moisture | Less sensitive | Absorbs moisture faster |
| Ease of use | Easiest | Slightly trickier (stringing) |
Temperatures are guidelines. Always follow the recommended settings on your filament spool.
What does the difference cost?
For our standard print (50 grams, 5 hours, a €400 printer) the total cost is €2.29 with PLA and €2.40 with PETG. Work it out for your own print with the calculator: choose PLA or PETG.
Choose PLA if…
- you print prototypes, figurines or decoration;
- the print stays indoors and does not get hot (think of a car in the sun);
- you are just starting out.
Choose PETG if…
- the print has to withstand moisture and heat;
- you make functional parts that take impact;
- you want a tougher material than PLA.
Want to compare more materials? See cost per material.
Frequently asked questions
Is PETG more expensive than PLA?
A little: about €2 per kg on average. For a 50 gram print that is about €0.11 in total cost.
Is PETG stronger than PLA?
PETG is tougher: it bends before it breaks. PLA is stiffer but more brittle. Which is stronger depends on the model and the settings.
Can I use PETG outdoors?
PETG handles moisture and heat better than PLA. For long-term use in the sun, ASA is more suitable.
When should I choose PLA?
For prototypes, figurines and decoration, and when you want the easiest and cheapest print.