Professional Lab PETG CF Black 1kg

Professional technical PETG CF filament for demanding parts

Professional Lab PETG CF Black is a composite filament based on PETG enriched with carbon fibers. Thanks to a combination of high stiffness, dimensional accuracy, and low shrinkage, it is an ideal choice for functional prototypes, jigs, brackets, structural parts, and other technical components that must withstand long-term mechanical stress.

The matte black surface also minimizes the visibility of layers and gives prints a professional, industrial look without the need for intensive post-processing.

Key features

• Material: PETG + CF (carbon fibers)
• Color: Black
• Filament diameter: 1,75 mm
• Spool weight: 1 kg
• Surface finish: matte, technical look
• Increased stiffness and strength compared to standard PETG
• Low internal stress and low warping – suitable for larger and functional parts
• Excellent dimensional stability and accuracy of printed components
• Good resistance to moisture, chemicals, and weather influences
• Suitable for professional and advanced hobby use

Recommended print settings

Specific values may vary depending on the type of printer, hotend, and cooling. Take them as initial recommendations and fine-tune if necessary.

• Nozzle temperature: approx. 250–270 °C (PETG-CF needs higher temperatures than standard PETG)
• Bed temperature: approx. 80–100 °C
• Print speed: medium (e.g., 40–60 mm/s) to achieve maximum strength
• Bed: glass, PEI, textured sheet, or other surface suitable for PETG (possibly with an adhesive agent)
• Cooling: rather low to medium, depending on the part shape

For composite filaments with carbon fibers, it is strongly recommended to use a hardened nozzle (hardened steel, ruby, etc.), because carbon fibers are abrasive and quickly wear down standard brass nozzles.

Typical use

Professional Lab PETG CF Black is particularly suitable for:

• Functional and structural parts with a requirement for high stiffness
• Brackets, mounts, brackets, jigs, assembly fixtures
• Structural elements for RC models, robotics, or industrial equipment
• Technical prototypes and small series of parts
• Prints where a matte, discreet, and professional look is required

Thanks to the combination of mechanical properties and environmental resistance, it is also suitable for parts that will be used long-term or exposed to common operating conditions.

Advantages over common PETG

• Significantly higher stiffness and strength due to carbon fibers
• Better dimensional stability – less deformation in larger models
• Matte surface finish, which hides print layers
• Professional look of technical parts directly from the printer

Compared to classic PETG, this material is less flexible but much stiffer, which is ideal for structural and precise mechanical components.

Storage and filament care

To keep Professional Lab PETG CF Black at its optimal printing properties:

• Keep the spool in a dry place – ideally in a sealable bag with desiccant.
• Avoid long-term storage in a humid environment.
• Before an important print, the filament can be pre-dried in a filament dryer or dehydrator if necessary (according to the printer/dryer manufacturer's recommendations).

Correct storage minimizes stress in the print, improves layer adhesion and the surface quality of the model.

Who is this filament intended for

We recommend Professional Lab PETG CF Black for:

• Advanced hobby printers and makers moving from PLA/PETG to stronger technical materials
• Small companies, workshops, and prototyping laboratories
• Developers and designers who need to quickly test functional prototypes

Due to the balanced ratio between stiffness, printability, and price, it is an excellent material for daily technical use.

Key features:

• PETG filament reinforced with carbon fiber for maximum stiffness and strength
• Matte black surface that suppresses layer visibility and gives prints a professional look
• Low internal stress and low warping – suitable for dimensionally demanding and functional parts
• High dimensional stability and accuracy, ideal for technical and structural components
• Good chemical resistance and resistance to moisture and common weather influences
• Suitable for most FDM 3D printers with PETG support and an abrasion-resistant nozzle
• Optimal choice for professional users and advanced hobby printers looking for a strong technical material