PA6-CF Filament Overview
PA6-CF Filament is a carbon fiber reinforced Polyamide 6 (Nylon 6) composite designed for high-performance 3D printing applications. With 15% chopped carbon fiber by weight, this filament delivers superior rigidity, thermal stability, and dimensional accuracy compared to unfilled nylons.
Technical Specifications
| Propiedad | Valor |
|---|---|
| Material Base | Polyamide 6 (PA6) |
| Contenido en fibra de carbono | ~15% by weight |
| Diameter | 1.75 mm / 2.85 mm (±0.05 mm tolerance) |
| Densidad | 1.23 g/cm³ |
| Tensile Strength (XY) | 110 – 130 MPa |
| Módulo de flexión | 7,500 – 9,000 MPa |
| Alargamiento a la rotura | 3 – 5% |
| Heat Deflection Temp (HDT B) | 160 – 180°C (0.45 MPa) |
| Glass Transition Temp (Tg) | ~60°C (dry) |
| Melting Temperature | ~220°C |
Recommended Print Settings
| Setting | Recommended Value |
|---|---|
| Nozzle Temperature | 270 – 290°C |
| Bed Temperature | 90 – 110°C |
| Chamber Temperature | 45 – 60°C (enclosure required) |
| Print Speed | 40 – 60 mm/s |
| Nozzle Type | Hardened Steel or Ruby (0.6mm recommended) |
| Bed Adhesion | Magigoo PA, PVA glue stick, or PEI sheet |
| Drying Requirements | 70°C for 8-12 hours (print from dry box) |
Packaging & Spool Information
| Item | Details |
|---|---|
| Available Weights | 0.5 kg, 1 kg, 2.5 kg |
| Spool Outer Diameter | 200 mm |
| Spool Hub Diameter | 52 mm |
| Spool Width | ~65 mm (1 kg) / ~85 mm (2.5 kg) |
| Packaging | Vacuum-sealed with desiccant, resealable bag |
⚠️ Important Hardware Requirements
- Nozzle: Carbon fiber is abrasive. A hardened steel nozzle is mandatory. Brass nozzles will wear out within hours.
- Nozzle Diameter: 0.6mm or larger recommended to prevent clogging from fiber particles.
- Extruder: Dual-gear extruder strongly advised. Fiber-filled filament is stiff and may slip on single-gear setups.
- Enclosure: Required for parts larger than 50mm to prevent warping and ensure interlayer adhesion.
Key Advantages of PA6-CF Filament
- ✅ 3x higher stiffness than unfilled PA6
- ✅ Low warping compared to pure nylon
- ✅ Excellent heat resistance (160°C+ HDT)
- ✅ Professional matte black surface finish
- ✅ Lightweight alternative to aluminum components
Aplicaciones típicas
- Automotive under-hood brackets and mounts
- Drone frames and high-stress RC components
- Robotic grippers and end-of-arm tooling
- Manufacturing jigs, fixtures, and inspection gauges
- Functional prototypes requiring structural integrity
For bulk orders or technical inquiries, please contact our material specialists or use the quote request button below.
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Frequently Asked Questions – PA6-CF Filament
Q1: Do I really need a hardened nozzle for PA6-CF Filament?
Yes, absolutely. Carbon fiber is highly abrasive. A standard brass nozzle will wear out in just a few hours of printing, causing inconsistent extrusion and ruined prints. Use a hardened steel or ruby-tipped nozzle (0.6mm recommended) for reliable performance.
Q2: How should I dry PA6-CF Filament before printing?
Nylon absorbs moisture rapidly, which causes popping, stringing, and poor layer adhesion. Dry PA6-CF Filament at 70°C for 8–12 hours before use. For best results, print directly from a heated dry box or filament dryer set to 70°C.
Q3: What bed surface and adhesive work best?
We recommend Magigoo PA applied to a clean PEI sheet or garolite (G10) bed. PVA glue stick diluted with water also works. Ensure bed temperature is maintained at 90–110°C throughout the print.
Q4: Can I print PA6-CF Filament without an enclosure?
Small parts (under 50mm) may print successfully without an enclosure if the room is draft-free. However, for parts larger than 50mm, an enclosure with ambient temperature of 45–60°C is strongly recommended to prevent warping and delamination.
Q5: What nozzle temperature should I use?
Start with 270–290°C. Higher temperatures improve layer adhesion but may increase stringing. Run a temperature tower to find the sweet spot for your specific printer.
Q6: How does PA6-CF Filament compare to PA12-CF?
PA6-CF Filament offers higher stiffness and temperature resistance (160°C+ HDT) than PA12-CF, but absorbs more moisture. PA12-CF is tougher and more dimensionally stable in high humidity. For structural parts in hot/dry environments, choose PA6-CF; for wet or impact-heavy applications, consider PA12-CF.
Q7: Is post-processing or annealing recommended?
Annealing at 80–100°C for 2–6 hours can further increase heat deflection temperature and strength. Note that annealing may cause slight shrinkage (0.3–0.5% in Z-axis), so scale your model slightly if tolerances are critical.
Q8: Can I paint or glue PA6-CF printed parts?
Yes. The matte surface accepts paint and primer well. For bonding, use cyanoacrylate (super glue) or two‑part epoxy. Sanding the surface lightly improves adhesion.
