Introducing Brass-Filled Metal Composite HTPLA. Using real brass powder, we've created a premium heat treatable metal PLA filament for 3D prints that finish just like real metal! Our brass composite filament is as versatile as it is beautiful, printing like plastic, but finishing like real metal for beautiful, durable parts from most standard 3D printers. Whether you want your prints to be polished with the same bright mirror finish of shiny brass coins or a naturally rustic finish with an acquired patina reminiscent of an aged brass sculpture, the possibilities are endless with this specialty metal PLA filament. With so many finishing options, the sky is the limit!