Filament Spectrum TF-24108 PETG-CF 1.75 mm Red 1 kg

Spectrum Filaments TF-24108 PETG-CF 1.75 mm Red 1 kg is a PETG-based filament reinforced with short carbon fibres, supplied on a 1 kg spool in 1.75 mm diameter. The material pairs the toughness and chemical resistance of PETG with carbon-fibre reinforcement to increase stiffness and dimensional stability. Designed for use on FDM/FFF 3D printers, the filament supports higher print speeds and produces parts suited to functional prototypes, tooling and end-use components where improved mechanical properties and a visually matte finish are required.

Advantages

The carbon-fibre loaded PETG offers enhanced stiffness and reduced warping compared with standard PETG, while retaining good layer adhesion and impact resistance. The filament prints at standard PETG-like temperatures and is less hygroscopic than some other high-performance polymers, which simplifies storage and handling. Its reinforced composition yields parts with improved dimensional accuracy and surface texture suitable for structural applications and mechanical testing.

Suitable for

• Functional prototypes and engineering models
• Jigs, fixtures and assembly aids
• End-use parts requiring higher rigidity
• Mechanical components and housings

Key specifications

• Material: PETG with short carbon-fibre reinforcement
• Diameter: 1.75 mm
• Net weight: 1 kg spool
• Colour: Red
• Recommended maximum print speed: up to 200 mm/s (printer- and geometry-dependent)
• Typical print behaviour: increased stiffness, good layer bonding, matte finish

How to use

Load the 1.75 mm filament into a compatible FDM/FFF printer and set extrusion temperature according to your printer and hotend specifications for PETG-based materials. Use a hardened or wear-resistant nozzle to reduce abrasion from carbon fibres. Calibrate extrusion multiplier and print temperature on small test prints to achieve optimal layer adhesion and surface finish. Ensure the print bed adhesion method matches your printer setup—brim or raft may be used for larger parts to reduce lifting.

Usage recommendations

Store the spool in a dry environment or sealed container with desiccant to preserve filament quality. Use a hardened steel or ruby nozzle to prevent accelerated wear from carbon fibres and monitor first layers for proper adhesion. Adjust print cooling and retraction to balance surface quality and stringing; tune print speed up to the recommended value only after validating dimensional accuracy on test parts.