Tehran, YJC. Porcelain enamel is an art well developed in Iran as an artifact.
The process of the artistic enameling takes mineral glaze
that is used as decoration on metal surface.
The metal is usually copper or, though rarely, brass. Sometimes
also golden jewelry are enameled.
The process starts with the copper piece being glazed with
kaolinite three times and baked in furnace when a white, smooth layer settles
on. Then the glaze is painted by hand. The paint usually comes from different
oxides.
After the painting is done, the piece is again baked in
furnace. Here the oxide used and the furnace temperature render the final color
of the painting.