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FormFutura® MetalFil - Ancient Bronze

About The Materials 

MetalFil - Ancient Bronze is a PLA type of 3D printer filament with 80% bronze filling. It 3D prints heavyweight bronze parts which are nearly indistinguishable from genuine bronze casted objects.

Materials Documentations

Formfutura MetalFil Ancient Bronze is a composite PLA (polylactic acid) filament that is gravimetrically filled with approximately 80% bronze powder. The high bronze content in MetalFil Ancient Bronze makes 3D printed objects nearly indistinguishable from genuine bronze casted objects. MetalFil Ancient Bronze can be post-processed with various patina effects.

Unique features

  • Very high bronze-filling of 80%

  • Real bronze look, heavyweight, and “cold” bronze metal feel

    • Approximately 300% heavier than PLA (density of 3.5 g/cc)

  • Compatible with full metal, PEEK, and PFTE hotends

  • Compatible with direct drive and Bowden style extruders

  • Compatible with ≥ 0.4mm hardened nozzles with retraction settings enabled

  • Easy to post-process

  • MetalFil can be brushed, sanded, polished, waxed, coated and patina post-processed 


  • Aesthetics, design, and art

  • Figurines and miniatures

General printing guidelines *

Nozzle size: ≥ 0.4mm

Layer height: ≥ 0.2mm

Experience level: Beginner

Print temp: ± 205 - 225° C

Fan speed: 50-100%

Heat bed: ± 0 - 60° C

Enclosure needed: No

*) Above displayed settings are meant as guidance to find your optimal print settings. These ranges in settings should work for most printers, but please do feel free to experiment outside these ranges if you think it is suitable for your printer. There are a lot of different type of printers, hot-ends and printer offsets that it is extremely difficult to give an overall one-size-fits-all setting.

Post processing MetalFil - Ancient Bronze

Brushing and/or sand grinding

Once printed MetalFil - Ancient Bronze objects can very easily be brushed with a brass brush or sanded with a fine-grid sandpaper. By brushing and/or sand grinding your printed object you will brush/shine up the high concentration of bronze powders.

Build-in white polish feature

After being brushed and/or sanded MetalFil - Ancient Bronze will reveal its white polish feature. A very thin white layer/haze on your object will now allow you to easily polish your 3D print into a beautiful bronze object.

Professional polishing with a rotary tumbler

Post-processing a MetalFil - Ancient Bronze 3D printed object with a rotary tumbler will make your FDM 3D printed object indistinguishable from genuine bronze casted objects.

Patina post-processing

You can create several patina effects on MetalFil - Ancient Bronze printed objects in just one day time. With an ammonia and soda treatment you can for instance easily create a beautiful ancient blue weathering effect on your bronze object.

Waxing and coating

After every above-mentioned post-processing measure, you can always wax or coat your printed object to get an incredible shine effect. Waxing can be done with products such as beeswax and for coating one can think about products such as XTC-3D.

Nozzle cleaning

When printing with filled/composite filaments it is recommended to clean your nozzle immediately after printing by feeding 15-20cm PLA filament through your nozzle. This will make sure that any potential fillers are flown out of your nozzle. It is even better to use glow in the dark PLA as the extremely hard phosphorous particles are much more likely to scrape out residual waste from your nozzle.

Compliance *

This filament is compliant to below listed directives and regulations.

  • RoHS directive 2011/65/EC

  • REACH directive 1907/2006/EC

*) This declaration of conformity to directives and regulations is prepared according to our present standard of knowledge and may be amended if new cognitions are available and applies only for the above described products.






250g, 750g, 1500g

1.75mm, 2.85mm