CopperFill HTPLA is a mix of High Temperature "HT" PLA with copper powder.

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Metalfill filaments prints like plastic, but can be finished like real metal. It is relatively easy to work with and does not require a heated bed. Many finishing options are possible: 

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• Heat treat your HTPLA print to survive harsher environments like the hot sun or a polishing wheel

• Use 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 with spray ink (black for example) to fill recesses with a contrasting color and sand away the surface.

• 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.