American Filament PCTG is a 1.75mm copolyester filament pitched as a tougher, more chemically stable step up from PETG. It bonds strongly layer to layer, keeps high melt strength for even flow, and absorbs less moisture than PETG, so it stores longer between prints. It prints reliably without an enclosure, which makes it a practical choice for open-frame printers and functional parts. Its finish shifts between matte and glossy with temperature and speed, giving more control than standard PETG.
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Rated 4.6 from 175 ratings, buyers mostly report strong, clean prints and easy processing. Complaints center on tuning the finish and finding the right temperature.
This is a gunmetal gray 1.75mm PCTG filament for 3D printing. PCTG is similar to PETG, and it is made from a PET-based copolyester designed for professional-grade printing where easy processing and high toughness matter.
It bonds well to itself, which gives very high layer-to-layer adhesion. Its high melt strength keeps the flow even during printing. It is more chemically resistant and stable than PETG, ABS or ASA, and it absorbs less moisture than PETG, so it stores better. It can be printed reliably without an enclosure.
Unlike PETG, PCTG can print with a matte or glossy finish, depending on the temperature and speed settings. A nozzle temperature of 240-245°C gives a matte finish. It has low odor, does not need drying before use, and prints over a wide range of nozzle temperatures. It is manufactured in the USA.
