STEP 3
We then take the mold and attach it to a rubber flask base. Next we mix an investment solution similar to plaster. After inserting a metal flask into the base, we then pour the investment into the flask. After 2 hours of drying, the rubber base is removed. The flask is then placed inside a kiln to be fired for a period of 8 hours, melting the wax out and leaving a cavity for the metal to be poured into. This process is called the Lost Wax casting method. To pour the metal we use an oxygen/acetelyne torch and a vacuum casting machine. After the metal has cooled slightly, we then quench the flask in water and remove the casted piece. From there we file, sand, and polish the metal, then do any stone setting or special finishing thats needed.
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