Bambu Lab PAHT-CF is a high-performance composite filament made of PA12 polyamide and carbon fibers. It combines low moisture absorption, high strength and thermal resistance, making it an ideal material for functional and engineering parts.

Key Features

PAHT-CF is the successor to PA-CF and delivers up to 50% lower moisture absorption. As a result, it retains excellent mechanical properties and dimensional stability even in high-humidity environments. The composite contains carbon fibers that significantly increase stiffness, tensile strength and dimensional stability of prints. The material features exceptional interlayer adhesion in the Z-axis (impact toughness up to 13.3 kJ/m² in the Z-axis) and is resistant to impacts and mechanical stress. Thermal resistance reaches 194 °C (HDT at 0.45 MPa), so prints can withstand higher operating temperatures without deformation. The filament is intended for enclosed 3D printers and is compatible with AMS 2 Pro, AMS HT and AMS systems (not compatible with AMS lite).

Print Parameters

Who is Bambu Lab PAHT-CF for

PAHT-CF is designed for advanced users and professionals who need to produce mechanically and thermally stressed parts. It is ideal for functional prototypes, machining jigs, injection molds, clamping elements, fixtures and low-volume production. It finds applications in mechanical engineering, robotics, automotive and anywhere strength, stiffness and thermal resistance are required. Thanks to low moisture absorption, parts retain their properties even in operating conditions with higher humidity.

Printing Tips

• The filament is moisture-sensitive - always dry it before printing at 80 °C for 8 - 12 hours.
• Use only a hardened steel nozzle - carbon fibers quickly wear out brass nozzles.
• Recommended nozzle size is 0.6 mm - reduces the risk of clogging while maintaining print quality.
• A 0.2 mm nozzle is not compatible, and stainless steel nozzles are not recommended.
• The printer must have an enclosed chamber - the material requires stable thermal conditions.
• Remove supports within 2 hours after print completion, otherwise they may stick due to moisture absorption.
• The composite contains carbon fibers - wear protective gloves when handling, cutting or sanding.
• Store in a sealed package with desiccant at humidity below 20% RH.
• The spool is made of heat-resistant material and can be reused with Bambu refills.