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PAHT-CF - Bambu Lab

Ref.: BL-PAHT-CF-BLACK-175-1KG

84.29 €

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Approximate delivery date: Wednesday 24 September - Monday 29 September

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The PAHT-CF filament from Bambu Lab has established itself as one of the most advanced solutions for 3D printing in engineering and professional production. This composite material of PA12 and carbon fiber combines the low moisture absorption of PA12 with the exceptional performance of carbon fiber, delivering strong, stable parts with outstanding mechanical properties even in high-humidity environments.

Parts printed with PAHT-CF filament

Photo 1: Parts printed with PAHT-CF filament. Source: Bambu Lab

Its high-performance formula provides superior tensile strength, excellent layer adhesion, and great flexural resistance, making it an ideal ally for industrial applications requiring functional prototypes, tooling, injection molds, fixtures, and short-run production components. Unlike conventional carbon fiber nylon filaments, Bambu PAHT-CF absorbs up to 50% less water, maintaining dimensional accuracy and reducing the deterioration of mechanical properties after humidity exposure.

Comparative tests show that Bambu Lab’s PAHT-CF retains its strength even under extreme conditions, achieving much higher flexural modulus and Z-layer adhesion compared to other materials in the same category. Thanks to these characteristics, it withstands impacts, prolonged stress, and demanding applications without losing stability or deforming.

Bambu PAHT-CF offers much higher Z-layer adhesion compared to conventional PA-CF, giving it the ability to withstand high levels of impact or stress without breaking or deforming.

Video 1: Bambu PAHT-CF offers much higher Z-layer adhesion compared to conventional PA-CF, giving it the ability to withstand high levels of impact or stress without breaking or deforming. Source: Bambu Lab

Another major benefit is its thermal resistance, with a heat deflection temperature of up to 194 °C, ensuring reliable performance in parts exposed to high temperatures without compromising integrity. This makes it perfect for components subjected to friction, heat, or intensive industrial working conditions.

The PAHT-CF filament comes with a reusable, heat-resistant spool that does not deform during the drying process and contributes to plastic waste reduction. It also integrates smart RFID technology, allowing printing parameters to be automatically loaded into Bambu Lab’s AMS system, ensuring an agile workflow with no complex manual settings and an optimized printing experience from the start.

Reusable PAHT-CF spool

Photo 2: Reusable PAHT-CF spool. Source: Bambu Lab

In short, Bambu Lab PAHT-CF is a new-generation technical filament designed for 3D printing professionals who seek durable, strong, and precise materials, capable of meeting the challenges of modern industry with maximum reliability and consistency.

Parts printed with PAHT-CF carbon fiber reinforced nylon filament

Photo 3: Parts printed with PAHT-CF carbon fiber reinforced nylon filament. Source: Bambu Lab

General information
Material	PA CF
Format	1 Kg\| 500 Kg
Density	1.06 g/cm³
Filament diameter	1.75 mm
Filament tolerance	± 0.03 mm
Filament length	[1 kg] 392.2 m \| [500 Kg] 196.1

Printing properties
Printing temperature	260 - 290 ºC
Print bed temperature	80 - 100 ºC
Chamber temperature	45 - 60 ºC
Cooling fan	0 - 40%
Recommended printing speed	< 100 mm/s

Mechanical properties
Charpy impact strength	(ISO 179) 22.8 KJ/m²
Elongation at break	(ISO 527) 8.4 %
Tensile strength	(ISO 527) 92 MPa
Tensile modulus	(ISO 527) 3860 MPa
Flexural strength	(ISO 178) 125 MPa
Flexural modulus	(ISO 178) 4230 MPa

Thermal properties
Melting temperature	(DSC, 10 °C/min) 225 ºC
Softening temperature	(ISO 306) 220 ºC

The Bambu PAHT-CF filament requires specific conditions to reach its full 3D printing performance. Due to its high moisture sensitivity, proper drying before use and after storage is essential. An eight-hour drying at 80 °C is recommended for stable extrusion and optimal print quality.

Use with enclosed printers

This material requires a controlled printing environment and is not suitable for open-frame printers. Using 3D printers with enclosures ensures thermal stability and prevents warping during printing.

Recommended nozzle for PAHT-CF

For best results, use a 0.6 mm hardened nozzle, reducing clogging risks without compromising print quality. 0.4 mm or 0.8 mm nozzles may also be used, but 0.6 mm offers the ideal balance. Stainless steel nozzles are not recommended due to lower durability against carbon fiber abrasion.

Print surface and adhesion

Smooth or textured PEI sheets provide proper adhesion, especially with glue stick. Liquid adhesives are not recommended, as they cannot provide sufficient hold for this technical filament.

Support management and post-processing

When printing models with supports, remove them within two hours after printing to avoid moisture absorption and excessive adhesion. If needed, additional drying of the model facilitates support removal and improves surface finish.

Following these guidelines ensures dimensionally stable parts, high mechanical strength, and professional-quality finishes, meeting the demands of engineering and advanced production projects.

More information is available on the Bambu Lab wiki and in the Attachments tab.