Bambu Lab PA6-CF is a high-performance filament made of nylon 6 reinforced with carbon fibers. It combines exceptional strength, stiffness and thermal resistance with good impact and vibration resistance. It is designed for printing technical and structural parts operated in a dry environment.

Key properties

PA6-CF is a composite filament based on nylon with an addition of carbon fibers. The carbon reinforcement increases flexural strength (151 MPa) and modulus of elasticity (5460 MPa) in the dry state, making the material suitable for stressed structural components. The filament shows high thermal resistance with HDT of 186 °C (at 0.45 MPa load) and a softening point of 212 °C, placing it among materials for technical applications. The material is hygroscopic - it easily absorbs moisture from the air, which affects mechanical properties and necessitates thorough drying before printing.

Printing parameters

Who is Bambu Lab PA6-CF, 0.5kg suitable for

The material is designed for advanced users and professionals who print functional technical parts. It finds use in the production of fixtures, clamps, jigs, holders, gears, automotive and machine components as well as structural parts stressed in a dry environment. Thanks to its stiffness and impact resistance, it is suitable for parts exposed to vibrations, impacts and mechanical loads. Printing requires a printer with an enclosed chamber, a heated bed and a hardened nozzle - the abrasive carbon fibers quickly wear out a brass nozzle. The material is not compatible with 0.2 mm nozzles and using a stainless steel nozzle is not recommended.

Printing tips

• Always dry the filament thoroughly before printing (80 °C for 8 - 12 hours) - PA6-CF is extremely sensitive to moisture.
• During printing, keep the spool in a dryer or in a sealed container with desiccant (humidity below 20 % RH).
• Use a hardened nozzle - carbon fibers are highly abrasive and will wear out a standard brass nozzle within tens of hours of printing.
• Print in an enclosed chamber for stable temperature and to minimize warping.
• For better adhesion, apply glue stick to the PEI build plate.
• Remove supports within 2 hours after printing, otherwise they may become stringy from moisture and harder to remove.
• After printing, you can seal the surface of the part with a coating or wax - this will limit moisture absorption.
• When handling the filament and during post-processing (cutting, sanding), wear gloves - carbon fiber fragments can irritate the skin.
• The material becomes tougher after absorbing moisture - for parts requiring high impact resistance, you can intentionally condition them in a humid environment.