Proto-pasta
Proto-Pasta Copper Filled Metal Composite HTPLA 1.75mm x 500g
Proto-Pasta Copper Filled Metal Composite HTPLA 1.75mm x 500g
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Introducing Copper-Filled Metal Composite HTPLA . Using real copper powder, Protopasta has created a premium heat treatable metal PLA filament for 3D prints that finish just like real metal! This copper 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 copper coins or a naturally rustic finish with an acquired patina reminiscent of an aged copper sculpture, the possibilities are endless with this specialty metal PLA filament. With so many finishing options, the sky is the limit!
Scroll down or click the link below for more product specific details, finishing options, and application ideas for Copper-Filled Metal Composite HTPLA.
Finishing Techniques
- Heat treat your HTPLA print to survive harsher environments like the hot sun or a warm polishing wheel (more details below)
- Wire Brush to expose metal for future oxidation or a bright, satin finish
- Rock tumble with steel shot for darker, but smooth, shiny look
- Paint part (black for example) to fill recesses with a contrasting color
- Polish with a rotary tool, Cotton buff, and Polishing compound for a bright, mirror finish on high spots (darkens low spots)
- Polish with Paper for a clean, smooth, and bright finish with less darkening
- Patina (oxidize) exposed metal naturally or accelerate with a 50/50 vinegar/hydrogen peroxide mixture saturated with salt. Place in sealed plastic bag to retain moisture. Heat further accelerates reaction.




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