De-Waxing
De-waxing is the process of removing wax from the ceramic-coated shell to create a hollow mold. The coated assembly is placed in an autoclave or furnace where heat and pressure melt and drain out the wax. This process is also known as the “lost wax” method.
It leaves behind a precise cavity inside the ceramic shell that matches the final casting shape. Careful control of temperature and pressure is important to avoid cracking or damaging the shell. Proper de-waxing ensures a clean mold cavity, which is essential for producing defect-free castings.
