After the ceramic layers have been applied on the wax clusters and dried for a sufficient time, it is time to dewax the ceramic shells to prepare an empty cavity for casting. Since the temperature changes cause cracks and damages in the ceramic shell, currently weak due to its rawness, the dewaxing must be instantaneously done in seconds by autoclave, injecting steam at high pressure and high temperature into the chamber where the ceramic shells are placed, and in a few seconds, the wax discharges from the ceramic shells.
