PCTG Filament – Strong, Clear, and Easy to Print Engineering Copolyester

PCTG is a next-generation copolyester filament that combines the ease of printing of PETG with improved toughness, temperature resistance, and clarity. It’s an excellent all-round engineering material for functional parts, prototypes, and transparent models that need strength and chemical stability.

Compared to standard PETG, PCTG offers higher impact resistance and can handle greater mechanical stress before deformation. It also maintains excellent optical clarity and layer adhesion, making it ideal for mechanical components, covers, lighting fixtures, and display pieces.

PCTG prints easily on most open-material 3D printers and performs well even without a fully enclosed build chamber. It resists warping, bonds strongly between layers, and produces smooth, glossy surfaces with minimal effort.

Bilby3D’s range of PCTG filaments are dimensionally consistent and moisture-controlled, ensuring excellent extrusion stability and print reliability. It’s a perfect step up from PETG for users who want greater strength and heat resistance without moving into more demanding engineering polymers.

Explore our PCTG filament range below, or get in touch with our team for advice on how PCTG compares to PETG, ABS, or other materials for your specific project.