SUNLU Nylon PA6-CF 3D Printer Filament, 1.75mm, 1KG, Black | 20% Carbon Fiber Reinforced, 209°C Heat Resistance, Ultra-Stiff & Strong for Industrial Prototypes & Parts

Product Details

• Extreme Stiffness & Heat Resistance: SUNLU PA6-CF reinforced nylon filament blends 80% PA nylon with 20% carbon fibers. The result is a significant upgrade in structural rigidity, tensile strength, and heat resistance, while also ensuring outstanding layer adhesion for reliable, durable prints
• Industrial-Grade Durability: PA6-CF suitable for functional prototypes and end-use parts that must endure stress, this material excels in applications requiring high torsional, tensile, and impact strength. Use it to print durable components like gears, brackets, tool housings, fan blades, automotive prototypes, and robust sports equipment
• High-Temperature Performance (209C/408F): Featuring a heat deflection temperature significantly higher than many common filaments like Easy PA, PC, or ASA, this material works well for parts exposed to heat. It's suitable for automotive under-hood components, machinery covers, heat-resistant fixtures, and other high-temperature environments
• Recommended Print Settings: For successful prints, use a nozzle temperature of 270-290C (518-554F) and a heated bed at 50-70C (122-158F). Print speeds between 50-150mm/s are recommended. To maximize the heat resistance and strength of your part, annealing at 80-130C for 5-12 hours is highly advised
• Essential Printing Tip :Dry Before Use: For optimal results, dry this filament before printing. Recommended settings: 80C for 24 hours or 110C for 4 hours. Due to its abrasive nature, use a hardened steel or other wear-resistant nozzle for best performance and to prevent wear on standard copper-alloy nozzles
• Precision 1.75mm Diameter: Features a consistent 1.75mm diameter with a tight tolerance of +/- 0.03mm. This high dimensional accuracy ensures reliable extrusion and broad compatibility with the vast majority of FDM 3D printers on the market
• Universal Spool Compatibility: The spool is designed for wide compatibility: 203.2mm (8 inch) diameter, 63.5mm (2.5 inch) width, and a 55.88mm (2.2 inch) hub hole. It fits most popular printers, including models from Bambu Lab (H2D, X1, P1 series with AMS), Prusa, Creality, and more
• Factory-Fresh Vacuum Sealing: Every spool is vacuum-sealed with a desiccant pack inside. This industrial packaging locks out moisture and dust during shipping and storage, guaranteeing that your filament arrives perfectly dry and ready to deliver excellent print quality

From the listing on Amazon.

View our other SUNLU listings here.

View our other Nylon-CF listings here.

Keep your filament dry, view our gear here.

Printing SUNLU Nylon-CF

SUNLU Nylon-CF in Black is Nylon filled with chopped carbon fiber, and this listing is a 1kg spool. The fibers make parts stiffer and more dimensionally stable than plain Nylon, but they are abrasive, so a hardened nozzle is mandatory (see nozzle compatibility below). The ranges below are for Nylon-CF, which usually prints a little hotter than plain Nylon. Nylon-CF is best suited to strong, stiff engineering parts that must also tolerate heat. 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, Polymaker and Prusament 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.