1 / 7SUNLU PA6-CF 1.75 mm Nylon Carbon-Fibre 3D Printer Filament, 1 kg
Carbon-Fibre Printer: SUNLU PA6-CF is a 1.75 mm nylon filament reinforced with carbon fibre for 3D printing parts where the listing claims stiffness, strength and heat resistance. The stated print temperatures and required pre-drying make it a more demanding choice than a general-purpose filament.
At a glance
- Carbon-fibre-reinforced PA6 is positioned for functional parts such as gears, fan blades and bicycle components.
- The listing claims a heat deflection temperature up to 209°C and recommends annealing for better heat resistance in printed parts.
- The print guidance specifies 270–280℃ at the nozzle and says drying is required before printing.
- A hardened-steel or other abrasion-resistant nozzle is recommended because carbon-fibre filament can cause abrasion.
Often bought together
Pros and cons
Pros
- The specified 1.75 mm diameter and spool dimensions help buyers check fit against their printer and spool holder.
- Detailed drying, nozzle, bed and annealing guidance is provided for users prepared to follow a more involved material workflow.
- Carbon-fibre reinforcement is intended to increase stiffness and strength compared with the unreinforced nylon base, according to the listing.
Cons
- This filament requires drying before printing, adding preparation and equipment requirements.
- The recommended 270–280℃ nozzle range and abrasion-resistant nozzle guidance may not suit printers without the necessary temperature capability or wear-resistant hardware.
Technical specifications
17 specifications| Brand | SUNLU |
|---|---|
| Model | Filament Technique pour Impression 3D |
| Weight listed | 1 Kilograms |
|---|---|
| Filament diameter | 1.75 Millimetres |
| Dimensional accuracy | 1.75mm +/- 0.03mm |
| Spool diameter | 203.2mm(8inches) |
| Spool width | 63.5mm(2.5inches) |
| Spool hub hole diameter | 55.88mm(2.20inches) |
| Material listed | Nylon |
|---|---|
| Colour | 1000g PA6-CF Black |
| Composition claimed | 80% PA and 20% Carbon Fibers |
| Heat deflection temperature claimed | up to 209°C |
| Nozzle temperature | 270-280℃ |
|---|---|
| Bed temperature | 50-70℃ |
| Print speed | 50–150mm/s |
| Annealing guidance | 80℃~130℃ 5-12h |
| Drying guidance | 80°C for 24 hours or 110°C for 4 hours |
What to know before buying
- The 209°C figure is a manufacturer-listed heat deflection claim, not an assured service temperature for every printed part. Annealing is recommended to support heat resistance. Customer feedback is mixed on durability and adhesion, and reports tangling, so results and spool handling may vary.
Who is it for?
A good fit for
- Users printing functional nylon parts who can dry the material and use a printer with a suitable hot end.
- Buyers seeking carbon-fibre-reinforced filament for components such as gears, fan blades or other parts where stiffness is a priority.
Less suited to
- Users seeking a low-preparation filament, since the listing says PA6-CF must be dried before printing.
- Printers that cannot reach the stated nozzle temperature or users without an abrasion-resistant nozzle when printing carbon-fibre material.

Customer reviews on Amazon
- 5 stars
78% 78% - 4 stars
9% 9% - 3 stars
5% 5% - 2 stars
3% 3% - 1 star
5% 5%
Customer feedback is generally positive about print quality, overall quality, appearance and value, with some customers reporting strong prints and good printability. However, feedback is mixed on durability and adhesion, and tangling is also reported. For buyers using the listed drying and temperature guidance, those reports make spool handling and getting reliable bed adhesion worth considering alongside the filament’s claimed functional-part properties.
Positive themes
- Customers report good print quality and overall filament quality.
- Some feedback describes strong prints and positive printability, finish and appearance.
- Value is also mentioned positively.
Negative themes
- Tangling and poor winding are reported by customers.
Mixed feedback
- Customer feedback differs on durability, with some finding prints strong and others describing brittleness.
- Adhesion experiences are mixed, with some reporting no issues and others reporting poor adhesion.
Frequently asked questions
Does this filament need drying before printing?
Yes. The listing says drying is required and gives two options: 80°C for 24 hours or 110°C for 4 hours.
What nozzle temperature does SUNLU recommend?
The stated nozzle range is 270–280℃. The listing also recommends an abrasion-resistant nozzle, such as hardened steel, for carbon-fibre filament.
Is the claimed 209°C heat deflection temperature a guaranteed operating temperature?
No. It is a listing claim for heat deflection, not a guarantee of the maximum operating temperature for every printed part. The listing recommends annealing to help improve heat resistance.
What spool dimensions should I check?
The listing gives a spool diameter of 203.2mm(8inches), width of 63.5mm(2.5inches) and hub hole diameter of 55.88mm(2.20inches). Compare these with your printer or holder.

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