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Proto-Pasta Magnetic Iron PLA - 1.75mm (0.5kg)

Let this filament's magnetism draw you in! Proto-Pasta's Magnetic Iron PLA functions like a magnet and behaves similarly to iron- you can even get it to rust! Create and print more magnetizing projects right from your home.
Product No. M7N0SC63
List Price: $38.00
Price: $34.99
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Proto-Pasta's Magnetic Iron PLA is truly one of a kind! Like pure Iron, this filament is attracted to magnetic fields. Translation: magnets stick to it! It also rusts like real iron. To get a rusty iron look, "polish" your finished print with a wire brush to expose more of the iron particles to the air. Then, submerge print in a salty solution for about 2-3 days. Soak for a longer period to achieve a rustier finish.

Check out this video to see just how cool Magnetic Iron PLA is!

Nice Magnetism!


  • Material: Natureworks 4043D PLA with finely ground iron powder
  • Recommended Extrusion Temperatures: 185 - 205°C
  • Bed Temperature: 60-70°C or No Heat when using blue painter's tape.
  • True Diameter: 1.75 mm
  • Density: 2.00 g/cm³
  • Volume: 0.25 L
  • Length: 104.0 m

Please Note: Magnets stick to prints made with Magnetic Iron PLA, but printed objects will not function as magnets.


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In short, the MatterHackers Pros are here to partner with you through every step of your digital manufacturing journey. Additionally, we have all of the 3D Printers, Filament, and Accessories that you could ever need to design anything you can imagine.