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Steel-filled Metal Composite PLA

30 reviews SSP11705

Regular price $49.99 USD

Prints like plastic, polishes like metal!

Proto-pasta Stainless Steel PLA is a dense material that prints as easily as standard PLA but results in heavy cast metal looking prints that can be brushed, sanded, or polished post-print to achieve amazing results. Perfect for jewelry, costumes, props, figurines, crafting, robots, and more!

We suggest experimenting with polishing using this starter kit (includes instructional videos).

**This filament is more abrasive than standard PLA. Be prepared to replace your nozzle and do 1st layer adjustment. Try a wear resistant and/or larger diameter nozzle for increased service intervals.

  • Available in 1.75 & 2.85 (3) mm diameters.
  • 125g are loose coils, 500g is on a 8" diameter spool, 2kg is on a 12" diameter spool.
  • Usable on most PLA-compatible printers, such as Lulzbot, Makerbot, FlashForge, Dremel, Ultimaker, Printrbot, and more!

In filament form, SSPLA is slightly more brittle than standard PLA, and requires extra care when handling. 

Processing is comparable to standard PLA. No heated bed required. Process may be less consistent on smaller nozzles and/or bowden type machines, 

We frequently print using direct-drive systems with 0.4mm nozzles, though suggest 0.6mm and 210-230C for the best experience.

Customer Reviews
4.1 Based on 30 Reviews
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Michael J.
United States United States
Steel and CF PLA

Both are as advertised. The steel requires some burn-through after printing to polish, the carbon is amazing once annealed

ProtoPlant, makers of Proto-pasta Steel-filled Metal Composite PLA ReviewProtoPlant, makers of Proto-pasta Steel-filled Metal Composite PLA Review
Tambe B.
My favorite filament

Everything I print now is either this, or the copper filled PLA, or the magnetic iron one. This stuff has spoiled me, because now I look at anything printed with just regular plastic PLA as garbage. I polish all my metal prints with a set of sandpapers pretty similar to what the polishing kit includes I think. I start with a 60 grit, and follow that with 80, 180, 400, 800, 1500 and finally 2000. Depending on the shape of the print it's sometimes a real pain doing the sanding, but the end result is always worth it. I think one of the best and most practical prints I used this for was a replacement knife handle. The metallic finish was perfect for that. Another print I'm particularly fond of, as a boston terrier owner, is a little boston terrier emblem for my car:

Steve l.

It looks so good straight off the printer would recommend to anyone

John Y.
United States
Sample of Polishable Stainless Steel filament.

I printed my models with it using the same settings I have used for other of their composite PLAs. It printed just as expected. I will keep this filament in mind for future projects. I now have tried several samples and found each one to be very good.

Austin D.
United States
awesome composite filament

this stuff is great