Did you know that for the enamelling technique as many firings are needed as there are different colours?

Well-known since Antiquity, the enamelling technique consists in applying a glass powder, coloured by metallic pigments, to a metal surface using a binding agent. Once subjected to the heat of the kiln, this powder reaches its melting point. On cooling, it gives a hard and shiny vitrified surface. Each enamel colour reaches its melting point at a given temperature due to the metallic pigments it contains, as many firings are needed as there are different colours.

In the early 17th century, based on the knowledge acquired by his predecessors, the goldsmith Jean Toutin developed a new painted enamel technique consisting in applying, on a gold, copper or silver surface, a first layer of opaque white enamel intended to be used as a base for an extended palette of vitrifiable colours. Using this process, the craftsmen finally had a colour range comparable to that of oil painting. For the first time, enamel’s resistance and brilliance could be combined with a virtually unlimited decorative potential.

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