MASTE (Metal Paste) | Copper | 3-Pack (1kg)MASTE Copper is a patent pending metal paste. It is compatible with INJEKTO M, but can also be used independently. When heated and extruded into a mold, the cooled hardened MASTE part can be placed into a furnace to produce pure copper metal parts. MASTE is 100% reusable prior to being placed in the furnace, so you can keep remolding it if needed. MASTE COPPER SPECS: MASTE will begin to flow at 80C (176F) One Step Sintering Process (No Debinding Step)