Barcode: 5903175653178

High-Performance Carbon Fiber PET for Functional 3D Printing

The Spectrum PET CF15 Carbon Fiber Filament is engineered for users who need stronger, stiffer, and more dimensionally stable prints than standard PETG. Reinforced with 15% carbon fiber, this filament delivers a premium matte finish with improved mechanical performance while remaining relatively easy to print.

Designed for makers, engineers, and prosumers, PET CF15 bridges the gap between aesthetic quality and functional strength—making it ideal for demanding applications without the complexity of high-temperature industrial materials.


Key Features & Benefits

  • 15% Carbon Fiber Reinforcement
    Enhances stiffness, strength, and dimensional accuracy for functional parts
  • Low Warp & High Stability
    Easier to print than many engineering filaments with reduced shrinkage
  • Matte, Professional Finish
    Naturally hides layer lines for clean, production-quality results
  • Improved Rigidity
    Ideal for structural components requiring minimal flex
  • Good Layer Adhesion
    Ensures strong interlayer bonding for durability under stress
  • Reduced Stringing Compared to Standard PETG
    Cleaner prints with less post-processing required

Typical Applications

  • Functional prototypes
  • Mechanical parts and brackets
  • Jigs, fixtures, and tooling
  • Automotive components (non-high-heat zones)
  • Robotics and drone parts
  • Enclosures and housings
  • End-use parts requiring stiffness and precision

Material & Compatibility

Spectrum PET CF15 is based on a modified PET matrix, enhanced with carbon fiber for improved mechanical properties while maintaining user-friendly printability.

Compatibility Notes:

  • Works with most FDM/FFF 3D printers that support PETG-like materials
  • Requires a hardened steel nozzle (carbon fiber is abrasive)
  • Compatible with standard heated beds
  • Suitable for enclosed and open-frame printers

Printing Characteristics:

  • Low warping compared to ABS or Nylon
  • Excellent dimensional stability
  • Minimal shrinkage
  • Reliable bed adhesion with common surfaces (PEI, glass, textured plates)

Why Users Choose PET CF15

Users choose Spectrum PET CF15 when they need a balance of performance, printability, and surface quality. It offers a noticeable upgrade over standard PETG in stiffness and appearance, without the demanding print conditions of advanced engineering polymers.

For print farms, product designers, and professionals, it delivers consistent results, reduced failure rates, and high-quality output—making it a dependable material for both prototyping and production.


Take Your Prints to the Next Level

If you're looking to produce strong, clean, and professional-grade parts with minimal hassle, Spectrum PET CF15 is a reliable upgrade. Add it to your workflow and experience improved rigidity, better aesthetics, and dependable performance across a wide range of applications.

Material PET with 15% Carbon Fiber Reinforcement
Filament Diameter 1.75 mm
Spool Weight 0.75 kg
Surface Finish Matte
Print Difficulty Moderate
Warping Low
Bed Requirement Heated bed recommended
Nozzle Requirement Hardened steel recommended (abrasive material)
Application Type Functional parts, engineering use

Spectrum PET CF15 is a black through-dyed material based on polyethylene terephthalate. It is the easiest-to-print material filled with carbon fibre on the market. It presents no retraction issues and does not require a heating chamber. It demonstrates a perfect surface finish directly from the printer, thus reducing the need for further treatments. Spectrum PET CF15 is compatible with support materials such as HIPS-X and can be used to print very strong and rigid items. It features a low impact of moisture and temperature on dimensions. PET CF15 filament may undergo additional treatment to improve its mechanical properties. To attain the very attractive properties of Spectrum PET CF15, as regards the technical aspects, you need to follow the basic storage rules for such materials (in a dry and dark place with humidity below 15%). To obtain the best parameters of the printed object possible, it is recommended to dry the material prior to work.


Is PET CF15 easier to print than other carbon fiber filaments?

Yes, PET CF15 is generally easier to print than materials like Nylon CF or PC CF, offering lower warping and more stable print behavior similar to PETG.


Do I need a special nozzle for this filament?

Yes, a hardened steel or wear-resistant nozzle is strongly recommended because the carbon fiber content is abrasive and can quickly wear out standard brass nozzles.


What makes PET CF15 different from regular PETG?

PET CF15 is reinforced with carbon fiber, making it stiffer, stronger, and more dimensionally stable, while also providing a matte surface finish that hides layer lines.


Is this filament suitable for functional parts?

Yes, it is specifically designed for functional and mechanical components where rigidity and strength are required.


Can I use this filament on a standard 3D printer?

Most modern FDM printers can handle PET CF15, provided they have a hardened nozzle and a heated bed for optimal results.


Does PET CF15 require an enclosure?

An enclosure is not strictly required, but it can improve print consistency and surface quality, especially for larger parts.



Carbon - Spectrum PET CF15 Filament - 1.75mm, 0.75kg

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  • Carbon - Spectrum PET CF15 Filament - 1.75mm, 0.75kg
  • Carbon - Spectrum PET CF15 Filament - 1.75mm, 0.75kg
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