PLA vs PETG: Easy Detail or Tough and Heat Resistant
Pick PLA for models, prototypes and anything that stays indoors and out of the heat: it prints easily on any machine and holds fine detail. Pick PETG for functional parts that need to bend without snapping, handle a hot car or a sunny windowsill, or live outside. Price per kg is close between the two, so the job should decide, not the cost.
PLA vs PETG Prices Right Now
PLA
PETG
PETG currently averages 9% less per kg than PLA.
PLA and PETG Side by Side
| Property | PLA | PETG |
|---|---|---|
| Nozzle temperature | 190-220°C | 230-250°C |
| Bed temperature | 40-60°C | 70-90°C |
| Enclosure | Not needed | Optional |
| Drying | 50-55°C, 4-8h | 60-65°C, 4-8h |
| Heat resistance | ~55°C | ~70°C |
| Difficulty | Easy | Easy |
| Best for | everyday prototypes, models, and indoor parts that won't face heat or heavy stress | functional parts that need toughness and the light outdoor or higher-heat use PLA can't handle |
Settings are starting points. The full settings cheat sheet covers every material.
When to Choose PLA
PLA is the easiest filament to print well. It runs at low temperatures, barely warps, needs no enclosure and gives crisp edges and fine surface detail, which is why it is the default for miniatures, display models, cosplay pieces and quick prototypes.
Its limits are heat and impact. PLA starts to soften around 55°C, so parts left in a car or near a heat source can sag, and it is stiff enough that thin sections tend to snap rather than bend.
When to Choose PETG
PETG trades a little ease for a lot of toughness. It flexes before it breaks, handles heat up to around 70°C, resists water and many household chemicals, and holds up better in sunlight than PLA. That makes it the usual pick for brackets, mounts, enclosures, planters and anything that takes knocks.
It is also a common first step up from PLA: the same printer can run it, and no enclosure is needed.
Printing Differences
PETG prints hotter, stringier and stickier. Expect to tune retraction and travel speed to control stringing, and slow the first layer slightly. On smooth PEI sheets PETG can bond so well that it pulls chunks off the surface, so a thin layer of glue stick is a common release layer.
PETG's print quality is more sensitive to moisture than PLA's, and wet PETG strings and pops badly. Drying it before a long print is worth the time; PLA is more forgiving.
Cost Differences
Per kilogram, PLA and PETG usually sit close together, and the gap moves with sales. The live prices on this page show where they stand right now. Because the price difference is small, choose the material the part needs, then buy it at the best price per kg.
Cheapest PLA and PETG Spools
PLA vs PETG FAQ
Is PETG stronger than PLA?
PETG is tougher: it bends and absorbs impact where PLA tends to snap. PLA is actually stiffer and can be stronger in a straight pull, but for most functional parts that take knocks or flex, PETG lasts longer.
Can I print PETG on a printer that prints PLA?
Usually yes. PETG needs a nozzle around 230 to 250°C and a bed around 70 to 90°C, which most modern printers reach. It does not need an enclosure. A PTFE lined hotend may be near its limit at the top of that range, so check yours.
Which is better for outdoor use, PLA or PETG?
PETG. It handles heat, water and sunlight far better than PLA, which can soften in summer sun. For parts in full sun year round, ASA is better still.
Is PETG more expensive than PLA?
Not by much. Price per kg is usually close, and sales swing it either way. The live prices on this page show the current averages and the cheapest spool of each.