PLA or PETG? Differences, uses and prices
Prices in this article update automatically – last update: today 18:20.
PLA and PETG are the two most popular filaments. Both print on any common printer without an enclosure, but they suit different jobs. In short: PLA is easier and more precise, PETG is tougher and more heat-resistant.
| PLA | PETG | |
|---|---|---|
| Nozzle temperature | 190–220°C | 225–250°C |
| Bed temperature | 50–60°C | 70–85°C |
| Heat resistance | softens at about 55–60°C | about 70–80°C |
| Impact resistance | low – brittle | good – bends rather than snaps |
| Stiffness | high | medium |
| Ease of printing | very easy | easy, but strings and sticks hard |
| Moisture and chemical resistance | average | good |
| Appearance | many effects: silk, matte, glitter | glossy, often translucent |
| Price per kg today | typically 101.03 zł/kg, from 36.63 zł/kg | typically 92.24 zł/kg, from 31.33 zł/kg |
When to choose PLA
- figures, models, mock-ups, decorations and prototypes,
- parts where dimensional accuracy and sharp detail matter,
- when you're just starting out – PLA forgives the most setting mistakes.
Don't choose PLA for things that will sit in the sun, in a car or near a heat source, or for parts exposed to impacts and bending.
When to choose PETG
- holders, hooks, electronics enclosures, printer parts,
- items used in the kitchen, bathroom and workshop,
- parts that need to flex a little instead of snapping.
PETG tends to string – well-tuned retraction and dry filament help. On a smooth PEI sheet it can stick so well that it tears off bits of the coating, so it's worth using a glue stick as a release layer or a textured sheet.
What about PLA+?
PLA+ (PLA Plus, PLA Pro) is PLA with additives that improve impact resistance. It's less brittle, but its heat resistance stays similar to regular PLA. It's a good compromise when you want PLA's ease of printing but slightly stronger parts. Today it costs typically 71.87 zł/kg, from 40.98 zł/kg.
Food contact
Both materials come in versions with a food-contact declaration, but an FDM print has gaps between layers where bacteria collect, and the nozzle and pigments matter too. 3D prints are usually not suitable for reusable tableware unless the filament manufacturer and the finishing method allow it.
Summary
For most models and to get started – PLA. For parts that need to work and last – PETG. You'll find the cheapest spools of both in the rankings, and starting settings in the temperature table.