Sintering Refractory Ballast - Al2O3 (1kg)
Use: Refractory ballast for firing Copper and Bronze Filamet™. Use with Sintering Carbon (formerly Coconut Shell Carbon).
Place the print in this refractory, ensuring the entire print and all surfaces are completely covered and any protruding areas are fully supported. The print must be fully surrounded by the refractory. Complete firing instructions