Bambu Lab PETG-CF Black refill is a carbon-fibre reinforced PETG filament in a spool-free eco-format, delivering the same high stiffness and chemical resistance of PETG-CF in packaging that reduces plastic waste. The carbon fibre reinforcement significantly increases stiffness and strength over standard PETG while retaining PETG's low warping tendency and chemical resistance.

Ideal for lightweight structural brackets, functional enclosures, and engineering parts that need better rigidity than standard PETG without the warping challenges of ABS. A hardened nozzle (0.4 mm or larger) is required. The spool-free format pairs with Bambu Lab's reusable spool system.

Key features

• Carbon-fibre reinforcement for significantly higher stiffness and strength versus standard PETG.
• Chemical and moisture resistance from the PETG base for outdoor and industrial applications.
• Low warping tendency for reliable printing of structural parts and flat geometries.
• Matte black colour provides a professional finish with minimal post-processing.
• Hardened nozzle required (0.4 mm or larger) due to abrasive carbon fibre.
• Spool-free refill format reduces packaging waste; use with Bambu Lab reusable spools.

Compatible with: All Bambu Lab printers (hardened nozzle required), and FDM printers with 1.75 mm hotend

In the box: 1 x 1 kg refill Bambu Lab PETG-CF Black