Perhaps the most familiar step in the investment casting process is when the molten alloy is poured into the molds – referred to as casting. A wide array of alloys can be melted and combined to achieve a near endless range of properties and characteristics for diverse applications. If there were multiple molds on the sprue, they remain connected by hollow ceramic structures that allow all the molds to be filled through a single pour. The process is the same, whether there are just two connected molds or many. Once the pour is completed, the castings are allowed to cool.