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White Ceramic Belfast Sink
This superb quality ceramic Belfast sink is manufactured in the traditional way from traditional materials to a traditional design.
This Belfast sink is made by a method known as "slipcasting". Clay mixed with water is poured into a two-piece plaster mould, which absorbs the water and becomes lined with a layer of set clay. The moulds are opened and the shaped piece is removed. The clay is sponged and fettled to a smooth finish. Still very wet and heavy, the Belfast sinks are taken to the "greenhouse", a room kept at a constant temperature to allow for gradual drying.
The Belfast sink is then taken for glazing where a thick layer of white vitreous china called "engobe" is brushed by hand onto each sink to provide a white base for the glaze. The clayware is sprayed with finely ground glass mixed with water and a cellulose binder. From this state the sinks are taken to be fired in tunnel kilns where they are moved slowly on trolleys through temperatures reaching 13000F.
This laborious and careful process cannot be rushed, and although modern technology has improved the conditions of manufacture, the same craftsmanship is applied to each and every ceramic Belfast sink today as it was 100 years ago.