PETG vs PCTG: Everyday Toughness or Maximum Impact Resistance
Pick PETG for everyday functional parts: it is cheap, easy to find and prints on almost any machine. Pick PCTG when a part has to survive drops and hits, stay clear, or handle oils and cleaning chemicals. PCTG is far more impact resistant but prints a little hotter and usually costs more. Heat resistance is close between the two, so do not upgrade for heat alone.
PETG vs PCTG Prices Right Now
PETG
PETG and PCTG Side by Side
| Property | PETG | PCTG |
|---|---|---|
| Nozzle temperature | 230-250°C | 240-270°C |
| Bed temperature | 70-90°C | 70-90°C |
| Enclosure | Optional | Not needed (helps with large parts) |
| Drying | 60-65°C, 4-8h | 60-65°C, 4-6h |
| Heat resistance | ~70°C | ~75°C |
| Difficulty | Easy | Intermediate |
| Best for | functional parts that need toughness and the light outdoor or higher-heat use PLA can't handle | tough, clear functional parts that need more impact resistance than PETG |
Settings are starting points. The full settings cheat sheet covers every material.
When to Choose PETG
PETG is the standard tough filament. It flexes before it breaks, resists water and many household chemicals, and prints on an open printer with no enclosure. For brackets, mounts, enclosures and most parts that see normal use, it does the job at a lower price.
It is also sold by nearly every brand in a huge range of colors, so matching a color or buying in bulk is easy.
When to Choose PCTG
PCTG is a close relative of PETG that uses more of the same glycol modifier (CHDM), and its big advantage is impact toughness. Manufacturer tests put it well ahead of PETG on impact strength, so it suits protective covers, tool holders, clips and parts that get dropped or struck.
It also resists oils, greases, alcohols and cleaning agents better than PETG, absorbs a little less moisture, and prints with better clarity and less of a yellow tint in thick transparent parts. Softening under load is only a few degrees better than PETG at most, so it is not a heat upgrade.
Printing Differences
PCTG usually runs a little hotter than PETG, often around 250 to 270°C at the nozzle with the bed around 75 to 90°C, so check that your hotend handles the top of that range. It likes moderate part cooling, because too much fan weakens layer bonding, and slower outer walls help surface finish.
Both materials are sticky on smooth PEI and both should be dried before long prints. PCTG tends to string slightly less than PETG once tuned, while PETG is the more forgiving of the two on a printer that has never been tuned for either.
Cost Differences
PETG is one of the cheapest filaments per kilogram, while PCTG is a specialty material with fewer suppliers and usually costs more. Buy PCTG for the parts that need its toughness and keep PETG for the rest. The live prices on this page show where the two stand right now.
Cheapest PETG and PCTG Spools
PETG vs PCTG FAQ
Is PCTG stronger than PETG?
PCTG is much tougher under impact, so it survives drops and hits that crack PETG. Tensile strength and stiffness are similar, so for static parts that never take a knock, PETG is usually enough.
Is PCTG more heat resistant than PETG?
Only slightly. Printable PCTG softens under load in the mid 70s °C, a few degrees above PETG. For parts that need real heat resistance, look at ASA, PC or a fiber filled nylon instead.
Can I print PCTG on a printer that prints PETG?
Usually yes. PCTG needs a nozzle around 250 to 270°C and a heated bed, and it does not need an enclosure. A PTFE lined hotend may be near its limit at the top of that range, so check yours.
Is PCTG more expensive than PETG?
Usually, yes, because fewer brands make it. The live prices on this page show the current averages and the cheapest spool of each.