SUNLU Carbon Fiber PETG Filament 1.75mm, (4xBlack) | 10% Carbon Fiber Reinforced for Enhanced tough, Stiffness & Heat Resistance, 4kg in Total, 1kg per Spool, 4 Pack, 4000g
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Product Details
- 【10% Carbon Fiber Reinforced PETG】- SUNLU PETG-CF infused with 10% carbon fiber, PETG-CF filament delivers significantly enhanced tough and rigidity compared to standard PETG. It is perfectly suited for demanding functional prototypes and end-use parts, such as drone frames, automotive components, tools, and industrial fixtures.
- 【Superior Toughness & Impact Resistance】- The short-cut carbon fiber reinforcement boosts PETG’s inherent toughness, resulting in an impressive impact strength of 19 kJ/m². This creates durable, crack-resistant prints that can withstand physical stress, making them ideal for robust structural components.
- 【Enhanced Heat Resistance (HDT: 70°C / 158°F)】- With a heat deflection temperature of 70°C, PETG-CF offers improved thermal stability and material strength while retaining the excellent impact resistance of PETG. It’s a reliable choice for parts exposed to warmer environments, from automotive interiors to outdoor equipment and garden tools.
- 【Premium Matte Surface Finish】- Carbon fibers not only reinforce your prints but also give them a distinctive, refined matte texture with a subtle grip. This dual benefit of hidden strength and a sophisticated, ready-to-use appearance is perfect for consumer products, prototypes, and any project demanding a premium look and feel.
- 【Reliable, Clog-Free Printing Experience】- Engineered for ease of use, this filament provides a smooth and consistent printing process with minimal risk of nozzle clogging or stringing. You can expect reliable production of parts with excellent rigidity, dimensional stability, and high surface quality.
- 【PETG-CF Recommend Settings】We recommend printing with PETG-CF filament at a nozzle temperature of 240-250°C, a bed temperature of 50-70°C, and a printing speed of 50-150mm/s. The filament should be dried at 70°C for 4-6 hours before use and stored in a dry environment afterward.
- 【Filament Spool Diameter】- Dimensional Accuracy +/- 0.03mm. 1KG Spool Diameter: 200 mm (7.87 inches), Spool Width: 67 mm (2.64 inches), Spool Hub Hole Diameter: 55 mm (2.17 inches). The size of the SUNLU filament spool is suitable for hanging on a lot of FDM 3D printers.
- 【Strong compatibility】- SUNLU 3D Filament is not only applicable to all SUNLU 3D printing products: FDM 3D Printer, 3D Printer Accessories, Filament Dyer, but also applicable to almost all FDM 3D printers of other brands. For example: bambu/Ender 3/Ender 3V2, etc.
- 【Vacuum Packed】-SUNLU 3D printer filaments are all vacuum sealed and come with a desiccant pack. Vacuum packing, dustproof and protect the filament dry, avoid absorbing moisture during transportation. Guaranteed to deliver the best printing effect of the filament to the hands of customers.
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Printing SUNLU PETG-CF
SUNLU PETG-CF in Black is PETG filled with chopped carbon fiber, and this listing is a 4kg spool. The fibers make parts stiffer and more dimensionally stable than plain PETG, but they are abrasive, so a hardened nozzle is mandatory (see nozzle compatibility below). The ranges below are for PETG-CF, which usually prints a little hotter than plain PETG. PETG-CF is best suited to stiff functional parts such as jigs, fixtures and brackets that need PETG's chemical resistance. Brands and even individual spools vary, so treat these as starting points and run a quick temperature tower to lock in the sweet spot for your printer.
Ranges checked against Bambu Lab, Prusament and Polymaker data. Heat resistance is the heat deflection temperature (HDT). Read our carbon fiber filament guide for bed adhesion, drying, troubleshooting, and material-specific tips.
Nozzle Compatibility
Carbon fiber is abrasive and wears brass (and stainless) nozzles out of round, sometimes within a single spool. Use hardened steel or another wear resistant nozzle such as ruby or tungsten carbide. With hardened steel, start about 5 to 10°C hotter than you would with brass.
Based on Bambu Lab and Prusa guidance. More in our carbon fiber filament guide and nozzle types guide.