2.85 mm PLA filament, Bronzefill


The Bronzefill filament is ColorFabb PLA/PHA with fine bronze powder. 3d printing with metal on your own desktop 3d printer! Now you can make jewelry that won’t feel like cheap lightweight plastic parts.

Buy - Prices VAT included
Sample (2 meters) €2,00 €1,00
5 meters €9,80 €4,90


Bronzefill filament.
Experimental filament.
For experienced user.


  • Bronze shine when polished
  • 3 times heavier than standard PLA

Tech specifications

Nominal diameter 2.85 mm
Warp n.a.
Flexibility n.a.
Break resistance n.a.
Printing temperature ~ 195-220 °C
Glass transition temperature n.a.


Depending on your set-up, 3d printer and slice software, you might see that Bronzefill needs a bit more flow compared to your normal PLA settings. Most plastics will show the swell when coming out of the nozzle tip, this is counteracted with specific slicer settings. Since bronzeFill doesn’t show a die swell such as PLA you might need to increase flow rate a bit, 4-8% was perfect for our UM2. UM original did not need any adjustments.

Sanding and polishing your parts will make the bronze particles shine. Start sanding with grit 120-180 and make sure all the printed lines vanish. You’ll notice that because bronzeFill is easy to sand down, careful you won’t loose too much detail. Then start working your way up by following with grit 240-320 and finishing off with grit 600 - or higher. Finally use a clean soft cloth and some copper polish to really get all of the shine out of the bronze particles.

Due to all the different types of hot-end it's extremely difficult to give a temperature advice. Please consider these tips, provided by the manufacturer, as a starting point to find the temperatures that work well in your setup. You may have to adjust the temperature settings slightly based on your type of printer.