Plaster molds are a common method in the production of sinks in
the vitreous china industry. This process primarily requires the
creation of a design and a model. This model is used for the creation
of the plaster mold, and plaster is poured over the model and left to
harden.
During the casting process, liquid ceramic slurry is poured into the
plaster mold. The plaster absorbs water from the ceramic slurry,
allowing the walls of the sink to reach a certain thickness. This
hardening process helps to form the shape of the sink.
The sink removed from the mold is then dried and fired. The firing
process hardens the sink and makes it waterproof. In the final stage,
the sink is glazed in various colors and patterns and fired again. This
process creates a glossy and durable surface.
Sink production with plaster molds allows for the creation of
detailed and complex designs, which is one of the reasons why this
method is popular in the vitreous china industry.