PCTG Filament

PCTG is a copolyester filament closely related to PETG. It prints on similar settings but has noticeably higher impact strength and better clarity in translucent colours. PCTG needs no enclosure and resists moisture and many chemicals. We stock PCTG in 1.75 mm on plastic spools.

PCTG compared with PETG

If you already print PETG, PCTG will feel familiar. The difference shows when a part is dropped, bent or hit: PCTG absorbs more impact before it breaks. Translucent PCTG is also clearer. PETG remains the cheaper everyday choice, and PCTG is the step up for parts that take abuse.

What PCTG is good for

PCTG suits protective covers, clips and snap fits, tool holders, guards and clear or translucent parts. Like PETG it is not fully UV stable for years of direct sun, so use ASA for permanent outdoor parts.

Print settings

Data sheets are in the TDS library, and free slicer profiles are available.

Common questions

What is the difference between PCTG and PETG?

PCTG and PETG are closely related copolyesters that print on similar settings. PCTG has higher impact strength, so PCTG parts survive drops and knocks that crack PETG. PCTG is also clearer in translucent colours. PETG is the more common everyday material.

Is PCTG hard to print?

PCTG is about as easy to print as PETG. PCTG prints on an open printer with the nozzle at 240 to 260°C and the bed at 70 to 90°C. Keep the PCTG spool dry, because damp PCTG strings in the same way damp PETG does.

Is PCTG stronger than PETG?

PCTG is tougher than PETG under impact, while stiffness is similar. A PCTG part absorbs more energy before it breaks, which matters for clips, covers and parts that get dropped. For rigid static parts the two materials perform much the same.