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Description

Fiberon™ PA6-CF20: High-Strength Carbon Fiber Reinforced Nylon 6 Filament (Formerly PolyMide™ PA6-CF)

Engineered for Demanding Applications
Fiberon™ PA6-CF20 is a carbon fiber reinforced PA6 (Nylon 6) filament containing 20% carbon fiber, designed for exceptional mechanical strength, stiffness, and heat resistance. The carbon fiber reinforcement dramatically improves rigidity and dimensional stability, making it ideal for functional prototypes, industrial tooling, automotive, and composite manufacturing applications.

Outstanding Performance Features

  • Exceptional Strength & Stiffness: Tensile strength up to 109 MPa and Youngs modulus over 8.6 GPa (XY), providing robust, rigid parts.
  • High Heat Resistance: Withstands temperatures up to 215°C, suitable for parts exposed to high thermal loads.
  • Superior Layer Adhesion: Fiber Adhesion™ technology ensures strong interlayer bonding and cohesive, durable prints.
  • Dimensional Stability: Minimal warping and excellent size stability, even on large or complex prints.
  • Chemical Resistance: Suitable for use in chemically aggressive environments.

Easy to Print for Advanced Users
While engineered for high performance, Fiberon™ PA6-CF20 is optimized for reliable printing on advanced FDM/FFF 3D printers equipped with an all-metal hotend and a hardened nozzle due to the abrasive carbon fiber content. Filament drying and post-print annealing are recommended for best results.

Same Trusted Formula, New Name
Fiberon™ PA6-CF20 is the same proven formula as PolyMide™ PA6-CF, though it may print in a slightly darker black shade than its predecessor.

Choose Fiberon™ PA6-CF20 for parts that demand maximum strength, heat resistance, and durability in industrial and engineering environments.

Fiberon™ PA6-CF20 is the same great formula as PolyMide PA6-CF, although Fiberon™ PA6-CF20 may print in a slightly darker black shade color than its predecessor.

Printing Requirements
  • All-metal hotend 280˚C+
  • Hardened nozzle
  • Filament dryer
  • Annealing post printing
  • Moisture conditioning after Annealing

Print Settings

Printing Temperature: 280˚C - 300˚C
Build Plate Temperature: 40˚C - 50˚C
Chamber Temperature: Room Temperature
Printing Speed: up to 300mm/s
Cooling Fan: OFF

Direct Drive:
Retraction Distance: 3mm
Retraction Speed: 40mm/s
Indirect Drive:
Retraction Distance: 6mm
Retraction Speed: 60mm/s

Recommended Drying Settings:
Regular Oven: 100˚C for 10h
PolyDryer: Level 3 for 18h (PolyDryer™)
(Only if the material has absorbed moisture)

Annealing Settings: 100˚C for 16h

Can't find your profiles? Check out our official presets at presets.polymaker.com

Fiberon™ PA6-CF20

$39.99
1.75mm SKU: FG03001 HEX Code: #312F2F
  • High Strength & Stiffness
  • High Heat Resistance
  • Strong Layer Adhesion
  • Chemical Resistant
  • Ready to Print -
Color: Black
Type
Net Weight

Payment Methods

  • American Express
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  • Diners Club
  • Discover
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  • Visa
  • Use a wear-resistant nozzle, such as hardened steel or ruby; the TDS notes that brass-nozzle life may be approximately 9 hours.
  • Store and print under dry conditions (relative humidity below 20%); dry at 100°C for 10 hours before use.
  • Use a 40-50°C build plate, and turn the cooling fan OFF; an actively heated chamber is not required.
  • Use glue stick or Magigoo PA if bed adhesion is weak.
  • If the material is used as its own support, remove the support before excessive moisture absorption to avoid permanent bonding.
  • Anneal at 100°C for 16 hours when the annealed performance stated in the TDS is required.
Property X-Y Z Value Method
Density g/cm³ · ISO 1183 1.17 g/cm³ Important ISO 1183
Tensile strength MPa · ISO 527 109.3 MPa Important 54 MPa Important ISO 527
Elongation at break % · ISO 527 2.1 % Important 1.9 % Important ISO 527
Bending strength MPa · ISO 178 161 MPa Important 71.3 MPa Important ISO 178
Bending modulus MPa · ISO 178 7037.6 MPa Important ISO 178
Young's modulus MPa · stiffness 8636.5 MPa Important 3759.5 MPa Important ISO 527
Charpy, unnotched kJ/m² · ISO 179 7.5 KJ/m² Important ISO 179
Charpy, notched kJ/m² · ISO 179 11 KJ/m² Important ISO 179
Melting temperature °C · ISO 11357 218.5 °C Important ISO 11357
Glass transition temperature (Tg) °C · ISO 11357 74.2 °C Important ISO 11357
Vicat softening temperature °C · ISO 306 219.2 °C Important ISO 306

Tested on 100% infill specimens. X-Y = across the layers, Z = between the layers (layer adhesion).

Frequently Asked Questions

Got questions? We've got answers. From choosing the right material to caring for your spools, here's everything you need to know in one spot.

What is annealing?

You can find out more about annealing HERE

What is moisture conditioning?

Moisture conditioning refers to allowing the print to absorb moisture. This is inevitble since nylons are hygroscopic, but you can expedite the process by keeping the print in a high humidity climate, or submerging them in water, for 48 hours. All of our test specimens were annealed at 100˚C for 16 hours, and then immerged in water at 60˚C for 48 hours. The average moisture content of specimens is 2.57%.

Should I anneal before or after moisture conditioning?

When you anneal in a convection oven, you will dry the part out. So if you moisture condition before annealing - you will need to moisture condition again after. So we would suggest to moisture condition after annealing.

Why do you use such a low build plate temperature with your nylons?

Our nylons come with our Warp-Free™ Technology. In order for this Warp-Free™ technology to work as it should - we want to make sure the build plate and the ambient air temperatures are both below 50˚C. We then anneal the print after to get it's full strength.

Learn more HERE

Will the spools work in an AMS?

Yes! We have redesigned the edges of our spools so all Polymaker products will now spin great in the AMS.

That said - you will need to be careful when using any abrasive materials in the AMS.

Can you offer 1KG Fiberon™ Spool Options?

Unfortunately we are not offering 1KG Fiberon™ options and this has to do with the increased chance of carbon fiber and glass fiber filament snapping on the spool.

Since carbon fiber and glass fiber filament is more brittle, we spool these with a larger core. This larger core means that 1KG of filament will not fit on a 1KG spool.

Customers praise this nylon filament for exceptional strength and durability, noting it "prints beautifully" with consistent quality. Reviews highlight excellent heat and impact resistance, ideal for demanding applications. While shoppers note it requires proper settings and drying (24hrs at 70°C recommended), they say it's "worth every penny" and "the absolute best for the price."

Strength (positive)Durability (positive)Parts (positive)Heat (positive)Shipping (positive)
  • 5 stars: 22 (100%)
  • 4 stars: 0 (0%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
G
Garrett L.
Black / 1.75mm (New Packaging) / 3kg

Great quality as always. Prints beautifully

F
Florian C.
Black / 1.75mm (New Packaging) / 0.5kg
Parfait

Parfait,

Un échange avec le service expérience m’a amené à acheter le PA6-CF pour la fabrication de mes nouveaux projets, les test de résistance sont encore en cours mais les attentes sont respectées.

Simplement parfait

A
Anonymous
Black / 1.75mm (New Packaging) / 0.5kg
The gold standard.

Takes a while to get dialed in (look up 300BLK FDE settings), then it's perfection.

A
Anonymous
Black / 1.75mm (New Packaging) / 0.5kg
We use Fiberon PAS-CF20 for some of our heaviest used components

We use Fiberon PAS-CF20 for some of our heaviest used components, and the parts come out clean, durable and reliable every time. Highly recommend it!

Polymaker processed our order correctly and promptly. We appreciate their quality service.

N
Nicholas C.
Black / 1.75mm (New Packaging) / 0.5kg
Worth every penny

Well packed, quick shipping, quality product resulting in quality functional prints.It's not cheap,but when it comes to printing parts you rely on,you gget what you pay for.

A
Anonymous
Prints Super Clean With Decent Bridging

Used for printing a new toolhead cover for my printer to get better part cooling. Printed super clean with bridging being decent. First bridge layer sagged but the rest held up very well. Printed on a K1 Max with a hardened steel unicorn nozzle at 60mm/s with nozzle at 290c and bed at 40c. The filament is pretty stiff and a bit brittle so definitely try to avoid bends on the way to the nozzle. Straight from the packagin I put it in a dryer at 70c and printed straight away so I'm sure I could get even better results if I dried it for longer.

J
Joseph Q.
Black / 1.75mm (New Packaging) / 0.5kg
AWESOME

Prints perfect

B
Ben

My nylon of choice. Always consistent. Easy to use, with the right equipment that is. I'd print everything in it if I could afford to.

M
Myk
Black / 1.75mm (New Packaging) / 3kg
Priced right and prints good once you get your settings dialed in

Priced right and prints good once you get your settings dialed in.

K
Kilidev
Black / 1.75mm (New Packaging) / 3kg
Nice quality

Models came out great

B
Bryan C.
Black / 1.75mm (New Packaging) / 0.5kg
Good Stuff!

Good stuff!

J
J.F.

Great!!!! The absolute best you can get for the price

a
alex

Printed great straight out of the packaging. No drying needed.

A
Alex
Black / 1.75mm (New Packaging) / 0.5kg
Prints so good

Prints so good, The finish is really clean even though I usually have issues with my printer. It's open chamber too, but after annealing it's way more durable and heat resistant than my painted pla+ stuff

E
Edmund

I use this for 2A parts where I need high heat and impact resistance. Works great for the application. Prints without any issues on a regular Bambu A1 without an enclosure. The key is to dry it for at least 24 hrs at 70 C and print it at 300 C. You wont be dissapointed.

S
Skyler

Love Polymaker products and shipped to my door within 24 hrs

C
Charles

I use fiberon PA6-CF20 to print premium products for my customers. Decently stiff and extremely tough. This brand is also the most reliable in my experience. Good customer service too.

P
Peter M.
Black / 1.75mm (New Packaging) / 0.5kg
Fast delivery. Prints like a dream. Incredibly strong

Title says it all. Prints amazingly well and this stuff is amazing. I don't think I have ever printed something that came out as tough as this before!

B
Benjamin H.
Black / 1.75mm (New Packaging) / 3kg

This filament is very strong and tough. It is fairly difficult to print but is absolutely worth it. I strongly recommend it.

J
Jeffrey C.
Black / 1.75mm (New Packaging) / 3kg
Truly exceptional

Made the switch away from Siraya Techs ppa-cf which warped every time during annealing and was brittle. This pa6-cf is unmatched by any nylon I have ever used no warping if you keep bed temp low. Zero warping during annealing. Very strong and impact resistant so far. Nothing but good things here.

M
Mario

Great stuff from polymaker as always. This is my go to filament for nylon with no issues. I normally print this from an Ender 3V3 KE, harden steel nozzle or bimetal, 293 nozzle temp with a 55 degree bed temp on a raft. Thanks again polymaker for a great product.

C
Canaan

Best filament for automotive and 2A Use

J
Joah

What filament manufacturer and type should I put in for the filament settings

Polymaker

Hey! You can find a list of all of our presets here: https://wiki.polymaker.com/polymaker-products/printer-profiles

Fiberon PA6-CF20 1.75mm 3D printer filament | Polymaker - Black
Polymaker

Fiberon™ PA6-CF20

From $39.99 USD

Fiberon™ PA6-CF20: High-Strength Carbon Fiber Reinforced Nylon 6 Filament (Formerly PolyMide™ PA6-CF)

Engineered for Demanding Applications
Fiberon™ PA6-CF20 is a carbon fiber reinforced PA6 (Nylon 6) filament containing 20% carbon fiber, designed for exceptional mechanical strength, stiffness, and heat resistance. The carbon fiber reinforcement dramatically improves rigidity and dimensional stability, making it ideal for functional prototypes, industrial tooling, automotive, and composite manufacturing applications.

Outstanding Performance Features

  • Exceptional Strength & Stiffness: Tensile strength up to 109 MPa and Youngs modulus over 8.6 GPa (XY), providing robust, rigid parts.
  • High Heat Resistance: Withstands temperatures up to 215°C, suitable for parts exposed to high thermal loads.
  • Superior Layer Adhesion: Fiber Adhesion™ technology ensures strong interlayer bonding and cohesive, durable prints.
  • Dimensional Stability: Minimal warping and excellent size stability, even on large or complex prints.
  • Chemical Resistance: Suitable for use in chemically aggressive environments.

Easy to Print for Advanced Users
While engineered for high performance, Fiberon™ PA6-CF20 is optimized for reliable printing on advanced FDM/FFF 3D printers equipped with an all-metal hotend and a hardened nozzle due to the abrasive carbon fiber content. Filament drying and post-print annealing are recommended for best results.

Same Trusted Formula, New Name
Fiberon™ PA6-CF20 is the same proven formula as PolyMide™ PA6-CF, though it may print in a slightly darker black shade than its predecessor.

Choose Fiberon™ PA6-CF20 for parts that demand maximum strength, heat resistance, and durability in industrial and engineering environments.

Fiberon™ PA6-CF20 is the same great formula as PolyMide PA6-CF, although Fiberon™ PA6-CF20 may print in a slightly darker black shade color than its predecessor.

Color

Type

  • New Packaging
  • Old Packaging

Net Weight

  • 0.5kg
  • 1kg
  • 3kg
  • 2kg
View product
$39.99