Sunlu PA6-CF 1.75mm 1kg

The SUNLU PA6-CF filament is designed for applications requiring maximum strength, reliability, and thermal stability over time. It is a nylon (PA6) reinforced with 20% short carbon fiber, a combination developed to achieve components with professional mechanical properties, superior rigidity, and lightness.

Thanks to carbon fiber, SUNLU's PA6-CF excels in tensile strength (up to 170MPa) and flexural strength (up to 245MPa), and exhibits high heat tolerance, with a heat deflection temperature of a remarkable 209°C. It is the ideal material for producing gears, automotive components, housings, structural parts, industrial equipment, drones, and sports accessories, where maximum durability, low weight, and resistance to impact and continuous stress are required.

The filament maintains low warping and excellent dimensional accuracy. The surface of the prints will be aesthetically professional, matte, and characterized by excellent layer adhesion. The use of hardened steel nozzles is recommended to prevent premature wear.

Technical specifications

• Filament diameter: 1.75mm (tolerance ±0.03mm)
• Composition: PA6 (nylon) with 20% carbon fiber
• Net weight: 1kg (spool)
• Recommended print temperature: 270–290°C
• Heated bed temperature: 50–70°C
• Recommended ambient temperature: optional, up to 100°C if available
• Recommended print speed: 50–150mm/s
• Tensile strength: up to 170MPa
• Flexural strength: up to 245MPa
• Flexural modulus: 11,000MPa
• Elongation at break: 10%
• Shore hardness: 84D
• Heat deflection temperature (HDT): 209°C
• Notched IZOD Impact: 9.7kJ/m² (X-Y)
• Colour: black
• Packaging: vacuum-sealed with desiccant, anti-humidity
• Compatibility: most FDM printers with all-metal hotends and hardened steel nozzles
• Notes: very moisture-sensitive, dry filament at 80°C for 24h or 110°C for 4h before use

Usage tips

• Use adhesive (PVA glue or specific nylon adhesive) on the print bed to improve adhesion.
• Anneal at 80–130°C for 5–12h to maximize thermal and mechanical resistance.