MACHINABLE GLASS CERAMIC (MGC)

White material that looks like porcelain, it has excellent thermal characteristics, acting as efficient insulation, and stable up to temperatures of 1000°C, with very little thermal expansion or outgassing. It can be machined into any desired shape using standard metalworking bits and tools. This combination of machineability and good thermal properties have made it the material of choice in many engineering contexts.With MGC fabrication is fast because it can be machined into complicated shapes and precision parts with ordinary metal working tools, quickly and inexpensively, and it requires no post firing after machining.