PCTG-CF Pro15 – Co-Extruded Carbon Fibre Enhanced PCTG Filament

PCTG+CF (Co-Extruded)

The PCTG-CF Pro15 filament is an engineering-grade, carbon fiber-reinforced PCTG material with a cutting-edge skin-core structure that outperforms similar PETG filaments. The core is made of PCTG reinforced with 15% chopped carbon fiber, providing exceptional strength, toughness, and rigidity, while the outer shell is unfilled PCTG resin, designed for superior bond strength and a pristine surface finish.

Thanks to the innovative design, the polymer fluid maintains a laminar flow state during extrusion, preserving the unique skin-core structure even after passing through the nozzle. This advanced structure and material brings several notable advantages over PETG-CF filaments:

• Enhanced Mechanical Properties: Compared to PETG, PCTG offers significantly higher toughness, impact resistance, and thermal stability, while the carbon fiber reinforcement further enhances strength and dimensional stability.
• Stronger Interlayer Adhesion: The skin-core structure addresses the typical weakness of fiber-reinforced filaments, ensuring exceptional bonding between layers, which results in more durable and reliable printed parts.
• Superior Surface Finish: The unfilled PCTG outer layer eliminates surface imperfections caused by floating fibers, delivering a clean texture that enhances the appearance and functionality of printed models.
• Greater Versatility: With improved impact strength, better heat resistance, and higher precision, PCTG-CF Pro15 is ideal for complex geometries, functional prototypes, and applications requiring rugged performance.

Made with premium carbon fiber—not powder or dust— the PCTG-CF Pro15 filament combines the benefits of PCTG with the advantages of carbon fiber reinforcement, offering lower shrinkage, better warpage resistance, and unmatched interlayer strength. Its advanced properties and professional surface finish make it the ultimate choice for demanding functional and aesthetic applications, far exceeding the capabilities of PETG-based alternatives.

Printing Tips：

The filament is designed to maintain its core-skin structure during extrusion, leveraging the stable laminar flow state of the molten polymer. However, at excessively high printing speeds, the melt flow can become unstable, disrupting the core-skin structure. This instability can lead to rough or uneven surfaces on the printed part.

To prevent this issue and maintain optimal print quality, it is recommended to either increase the printing temperature or reduce the extrusion speed to restore stable laminar flow and preserve the filament’s core-skin integrity.

Nozzle: We currently recommend a hardened steel nozzle with a minimum diameter of 0.4mm.

Diameter 1.75mm2 ±0.03
Density 1.28 ±0.05g/cm2
Print Temp 250-300ºC
Hot bed 80-110ºC (required)
Surface Glass, PEI, BuildTak, Kapton tape, Painter’s tape, Garolite, Polypropylene (PP) sheets, FlexPlate system, GeckoTek