3D Printing with Copper: Primaselect METAL review! #Filaween

3D Printing with Copper: Primaselect METAL review! #Filaween

Metal-filled filaments are pretty cool – you
can 3D print any regular shape you want and then sand, polish and buff your parts to expose
the metal particles inside. This is PrimaSelect Metal in the copper version, which retails
for 67€ per kg, but keep in mind that copper is an extremely dense metal, so you’ll only
get about a third of the volume of filament compared to regular PLA. This means that the
PrimaSelect Metal probably consists of about 30 Percent copper and the rest PLA. It actually
prints very well, and overhangs in particular come out flawlessly, with only a bit of extra
sagging with the bridges being noticeable – which i guess can be directly attributed
to the extra heat capacity of the copper content. Overall, it scores 17 out of 20 point, which
is right in line with regular PLA. Strength, on the other hand, couldn’t be much worse.
Almost none of the specimen showed any considerable resistance before breaking, so you’re probably
best off using this material for decorative objects. And that’s where it shines – literally.
With a bit of work from a wire brush to bring out the copper particles, you can already
see it getting that metallic shine, and a few good rubs with some metal polishing compound
even gets it quite shiny. Because the surface is always going to be porous, it’s not going
to get that perfect mirror-like finish you’d get from a polished slab of pure copper, but
it’s definitely an appealing look that comes close to, for example, a cast copper part.
Thinner layers are easier to polish to a smooth surface and if printed with a high infill,
the parts have a good weight to them as well. It is recommended to use a wear-resistant
nozzle with this filament, but other than that, it prints exactly like PLA and has good
bed adhesion and very little warping. So overall, if you want to create parts that
have a copper-like look and feel to them and don’t want to go down the route of casting
them, the PrimaSelect Metal is a good option, with low strength, but great print quality.


  1. For people asking if you can use this filament as a power cable…no. The power it would require would heat up the copper wire, right? I don't know for sure, but the filament contains a lot of PLA which might melt quickly if too much power goes through the copper for even a second. Wires would be super brittle but a circuit board (using a 2 color printer, which the prusa mk2 i3 will have soon) might work in a pinch. Basically no this is not an electrical filament, it's temperature sensitive and will warp out in the sun or in a heated box.

  2. I saw one of your reviews as a skipable ad at the beginning of an other video here on youtube and I thought I clicked on the wrong video… didn't skip it btw!

  3. I really love filaween because there is literally no other source that compares filaments on a quite professional level as you do! Die guten alten deutschen Ingenieure 😉

  4. Did you try testing the conductivity of a printed part? I expect high resistance if it is conductive, but some unique projects may need just that.

  5. I'd love to see if you can get the copper to develop a patina if you use a chemical treatment. Ammonium chloride and salt, or dilute muriatic acid work on copper to make it turn green.

  6. We are using the Virtual Foundry's 85% Copper filled PLA then using a Kiln to sinter the parts. So, basically, we are metal printing on A8 or $150 3D printer : )

  7. Is it me or these copperfills do not come even close to look like copper? Just throwing it out there, it has to be said.

  8. 1:20 Hi Tom. Do you have any idea how much the layer height / infill for this was? Or how much would you recommend?
    (If you mentioned it in the video, I must have missed it, sorry… In that case, can someone just point me to the timestamp, please?)

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