SUNLU PA6 Carbon Fiber Black 1.75mm Filament 1kg Spool

The SUNLU PA6 Carbon Fiber Black 1.75mm Filament represents the pinnacle of high-performance 3D printing materials, engineered for professionals and serious makers who demand industrial-grade strength, durability, and heat resistance. This advanced nylon filament combines 80% PA6 (Nylon 6) with 20% carbon fiber reinforcement, delivering exceptional stiffness, strength, and outstanding layer adhesion that far exceeds standard printing materials. With a remarkable heat distortion temperature of up to 209°C—significantly higher than Easy PA, PC, or ASA—this filament opens up new possibilities for high-temperature applications and demanding industrial uses.

Perfect for automotive components, mechanical parts, and structural applications, this carbon fiber reinforced nylon filament produces parts with extraordinary torsional, tensile, and impact strength. The integrated carbon fibers provide dimensional stability and create parts with a distinctive professional matte black finish that requires no post-processing. Whether you're prototyping industrial gears, manufacturing automotive exhaust components, creating durable skateboard parts, or building bicycle frame components, this filament delivers the performance and reliability that critical applications demand while maintaining excellent printability on standard FDM printers.

Key Features:

Industrial-Grade Carbon Fiber Reinforcement: Advanced 80% PA6 and 20% carbon fiber composition delivers exceptional stiffness, strength, and heat resistance with outstanding layer adhesion for professional applications.

Superior Heat Resistance: Heat distortion temperature up to 209°C enables high-temperature applications including automotive exhaust pipes, motor covers, pot handles, and kettle components—far exceeding standard materials.

Exceptional Mechanical Properties: Engineered for applications requiring high torsional, tensile, and impact strength including gears, screws, helmets, fan blades, automotive parts, and structural components.

Professional Dimensional Stability: Carbon fiber reinforcement provides excellent dimensional stability and minimal warping for precision parts and tight tolerances in demanding applications.

Zero Bubble Quality: 100% bubble-free filament ensures consistent flow and superior surface finish throughout the entire 1kg spool for reliable, professional results.

Enhanced Annealing Capability: Post-processing annealing at 80-130°C for 5-12 hours maximizes heat resistance and mechanical properties for ultimate performance.

Premium Black Finish: Carbon fiber content creates distinctive professional matte black appearance with excellent surface quality straight from the printer.

Precise Diameter Control: Strict 1.75mm ±0.03mm tolerance ensures consistent extrusion and optimal performance with all compatible FDM printers.

Specifications:

Material Type: PA6-CF (Carbon Fiber Reinforced Nylon 6)

Composition: 80% PA6 (Nylon 6) + 20% Carbon Fiber

Filament Diameter: 1.75mm

Diameter Tolerance: ±0.03mm

Net Weight: 1kg (2.2 lbs)

Gross Weight: 1.3kg (2.9 lbs)

Filament Length: Approximately 358 meters

Printing Temperature: 270-280°C

Bed Temperature: 100°C (with adhesion aid required)

Printing Speed: 50-150mm/s (50-100mm/s recommended)

Heat Distortion Temperature: Up to 209°C

Bed Adhesion: Requires PVA glue or Magigoo PA for optimal adhesion

Cooling: Minimal part cooling recommended (0-40%)

Enclosed Chamber: Highly recommended for optimal results

Nozzle Requirement: Hardened steel nozzle required (carbon fiber content causes wear)

Pre-Print Drying: Essential - 80°C for 24 hours or 110°C for 4 hours

Post-Processing Annealing: 80-130°C for 5-12 hours (optional for enhanced properties)

Quality Assurance: 100% zero bubble guarantee

Storage: Keep in dry environment, moisture-sensitive material

Color: Professional matte black with carbon fiber texture

Applications: Automotive parts, gears, screws, helmets, fan blades, structural components, high-temperature applications

Printer Compatibility: All FDM 3D printers capable of 280°C with hardened steel nozzles

Spool Dimensions: Standard 1kg spool format