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Now available in 1kg size. Protopasta Stainless Steel PLA filament 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. Using real steel powder, this premium, metal-filled steel PLA filament is perfect for
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This filament was really cool; I could only afford the 100grams because the full spool is 60$ for PLA. Maybe if I keep buying your products you will eventually reward me for my loyalty?
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Austin · September 30, 2026
We love using all of the different metal filled filaments, they print like dream on our Prusa XL 5Ts with E3D Diamondback nozzles. Amazing results!
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Arcustech · April 9, 2026
Amazing filament! Zero issues running through external feed with my H2D and generic PLA settings & a .4 nozzle. Chose that route simply because the cardboard spool and avoiding resulting AMS issues. Had a bit of resistance loading initially but once loaded, printed like a dream. I immediately ran PLA through the same nozzle, only because I needed to finish the print, with zero issues as well. Only issue I had was the 500g spool wasn’t 500g. Even with initial purge, I only got 81% of the way through a 388g print. That’s the only reason for the 4 star rating.