Bambu Lab PPA-CF is a premium engineering filament based on polyphthalamide (PPA) reinforced with carbon fibers. It combines extreme stiffness, thermal resistance, and stability in humid environments, bringing it close to the properties of metals and making it suitable for the most demanding technical applications.

Key features

PPA-CF offers strength approaching that of metals - it is 48% stronger and 102% stiffer than standard PA6-CF. It excels in outstanding dimensional stability, minimal warping, and accurate dimensional retention of the model even for complex parts. The moisture absorption rate is 66% lower than that of standard PA6-CF, allowing the material to retain its stiffness and mechanical properties even in humid environments or underwater. It withstands long-term exposure to temperatures up to 227 °C without loss of structural integrity, making it an ideal material for industrial, engineering, and automotive parts. The filament contains carbon fibers, which enhance mechanical properties, but at the same time requires a hardened nozzle and an enclosed printer.

Printing parameters

Who is the Bambu Lab PPA-CF filament, with spool, 0.75 kg intended for

This material is intended for advanced users and professionals who need an engineering filament with properties close to those of metals. It is used for printing functional prototypes, machine parts, replacement automotive and industrial components, brackets, jigs, parts resistant to high temperatures, and watertight applications (e.g. boat propellers, parts for surfboards). Thanks to its low moisture absorption, it retains its properties over the long term even in humid environments. The filament is compatible with Bambu Lab P1S, X1C, and X1E printers equipped with an enclosed chamber and a hardened nozzle. If you are looking for alternatives, you may also be interested in nylon filaments, carbon fiber filaments, or polycarbonate.

Printing tips

• Before every print, thoroughly dry the filament (100 - 140 °C for 8 - 12 hours), otherwise you will not achieve the declared mechanical properties.
• During printing, keep the filament in a sealed box with desiccant at humidity below 20% RH.
• Use exclusively a hardened steel nozzle - carbon fibers abrasively wear out brass nozzles.
• Do not use a 0.2 mm nozzle, as it may become clogged by fibers. The filament is not compatible with AMS systems.
• Before printing, apply a thin layer of glue to the build plate for better adhesion and surface protection.
• Print in an enclosed chamber - ambient temperature affects layer bonding quality and the mechanical properties of the prints.
• When handling prints, wear gloves - carbon fibers may cause mechanical skin irritation.
• For maximum strength, prints can be annealed according to the manufacturer's instructions in the TDS.