Carbon fibre PETG filament for stiffer functional 3D prints
Carbon Fiber - Standard PETG Filament - 1.75mm, 3kg is a PETG-based 3D printing filament reinforced with carbon fibre. The material is designed for makers and professionals who want PETG’s practical printability with added stiffness, a more technical surface finish, and improved dimensional stability for functional parts.
The 1.75 mm diameter fits a wide range of FDM/FFF 3D printers, while the 3 kg spool format supports longer print runs and larger projects with fewer spool changes. This makes the filament a practical option for batch production, workshop use, and oversized parts.
Key features of carbon fibre reinforced PETG
- PETG base material: Offers a balance of durability, layer adhesion, and everyday usability for functional printing.
- Carbon fibre reinforcement: Increases stiffness and helps produce parts with a more matte, technical appearance than standard PETG.
- 1.75 mm filament format: Compatible with many desktop and prosumer FDM/FFF printers that support PETG temperature ranges.
- 3 kg spool size: Better suited to high-volume printing, repeat production, and large-format parts than smaller spools.
- Functional-part focus: Well suited to prints where rigidity, cleaner geometry, and reduced flex matter more than cosmetic shine.
Why choose carbon fibre PETG for functional prints
Carbon fibre PETG is a strong fit for users who need more rigidity than standard PETG can provide. The added fibre changes the handling and print character of the material, making it useful for structural housings, machine accessories, workshop tools, and components that benefit from a more stable shape.
Compared with general-purpose filament choices, this material is often preferred when a printed part must hold its form under light mechanical load, resist everyday handling, and maintain a professional-looking surface finish.
Best use cases for a 3 kg carbon fibre PETG spool
- Jigs and fixtures: Suitable for repeated workshop use where stiffness and dimensional consistency are important.
- Brackets and mounts: A practical choice for supports, adapters, and machine-side accessories.
- Equipment enclosures: Useful for boxes, covers, and protective housings that benefit from PETG durability.
- Large-format functional parts: The 3 kg spool supports extended prints with fewer interruptions.
- Small-batch production: A good fit for print farms, engineering teams, and businesses printing the same part repeatedly.
Practical handling and printing notes
Carbon fibre filled filament is abrasive, so wear-resistant nozzles are the better choice for ongoing use. PETG also performs best when kept dry, especially for longer print jobs where moisture can affect finish and consistency.
This material is generally chosen by users who want a more technical, utility-focused result rather than a glossy display print. For functional applications, that balance of stiffness, PETG durability, and larger spool capacity makes this filament a solid production-oriented option.
Technical specifications
| Material | Carbon fibre reinforced PETG |
| Filament Diameter | 1.75 mm |
| Net Weight | 3 kg |
| Colour | Carbon Fiber |
| Printing Temperature | 230-260°C |
| Bed Temperature | 70-90°C |
| Print Speed | 30-80 mm/s |
| Bed Adhesion | PEI, glue stick, or PETG-compatible build surface |
| Cooling | Low to moderate part cooling |
| Enclosure | Not required; helpful in cooler rooms for larger parts |
| Nozzle Recommendation | Hardened steel or other wear-resistant nozzle recommended |
| Drying and Storage | Store sealed and dry; dry before printing if moisture is present |
Will it work with my printer?
Frequently asked
What printers are saying
Carbon Fiber - Standard PETG Filament - 1.75mm, 3kg
All orders are shipped from Canada. Duties, taxes, and tariffs may apply.
Mix & Match from the Bulk Filament page to Save More!