Vitreous China Basins

Vitreous china goes a step further and is made by coating porcelain or ceramic with an enamel made from powdered glass, giving it a glossy look. This special coating makes it only marginally more durable than ceramic and porcelain.

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Vitreous china is an enamel coating that is applied to ceramics, particularly porcelain, after they've been fired, though the name can also refer to the finished piece as a whole. The coating makes the porcelain tougher, denser, and shinier, and it is a common choice for things like toilets and sink basins.