3D printer filament Spectrum PC+CF carbon black 1 kg, 1.75 mm (PC+CF-BLA-175-1-SPE)

Spectrum PC+CF carbon black is a 1 kg spool of 1.75 mm filament formulated from polycarbonate reinforced with chopped carbon fibers. The material provides higher stiffness and improved heat resistance compared with many standard printing polymers, making it suitable for functional parts and assemblies. The carbon black color offers a neutral, professional appearance while the filament is intended for FDM/FFF printers that support PC-based blends and a 1.75 mm filament feed.

Advantages

This PC+CF filament combines the mechanical strength and thermal performance of polycarbonate with the added rigidity and dimensional stability from carbon-fiber reinforcement. It is designed to reduce part deformation at elevated temperatures and to produce stiffer components compared with unfilled PC or common engineering plastics. The carbon fiber content also improves surface hardness and wear resistance for mechanical applications where durability is required.

Suitable for

• Functional prototypes and proof-of-concept parts requiring higher stiffness
• Jigs, fixtures and tooling for workshop or production use
• Enclosures and housings exposed to moderate heat
• Mechanical components such as brackets, gear housings and supports

Key specifications

• Material: polycarbonate matrix with chopped carbon-fiber reinforcement
• Color: carbon black
• Filament diameter: 1.75 mm
• Spool weight: 1 kg net filament
• Compatibility: FDM/FFF printers that accept PC-based blends and 1.75 mm filament

How to use

Load the 1.75 mm spool into a printer configured for polycarbonate blends and set nozzle and bed temperatures according to your printer manufacturer's recommendations for PC-based filled filaments. Use a hardened steel or composite nozzle to resist abrasive wear from carbon fibers. Ensure good part bed adhesion using a suitable build surface or adhesive, and consider an enclosed build chamber to reduce warping and improve interlayer bonding. Print at moderate to slow speeds to allow consistent extrusion and layer adhesion; adjust cooling settings minimally to maintain strength.

Usage recommendations

For best results, use a hardened nozzle, maintain a dry filament environment, and tune printing temperatures and retraction settings for your specific printer. Consider post-processing options such as light machining or sanding for dimensional finishing, and avoid prolonged exposure to solvents that may affect polycarbonate.