Investment casting is valued for it’s ability to produce components with accuracy, repeatability, versatility and integrity in a variety of metals and high performance alloys. Lost-foam casting is a modern form of investment casting. Investment casting derives it’s name from the pattern being invested (surrounded) with a refractory material. Many materials are suitable for investment casting; stainless steel, brass, aluminum, carbon steel and glass. The material is poured into a cavity in a refractory material that is an exact duplicate of the part.