The water glass (adhering to the wax with the slurry) reacts to this solution in the bath,

- Dec 25, 2018-

The water glass (adhering to the wax with the slurry) reacts to this solution in the bath, thereby curing the layer. This layering process is repeated a number of times until the layer is sufficiently thick enough for pouring. If necessary, a smoother casting surface can be achieved by using the first ceramic layers as it is used in the silica sol technique. Only it will take longer to make the shell.