painted enamel

Enamelwork is an art form that decorates metal surfaces with a vitreous glaze, fused on by intense heat to create a durable, brilliantly colored finish. This technique involves using a flux, typically made from sand, red lead, and soda or potash, which is melted and then mixed with metallic oxides to achieve various colors.123

A specific technique is painted enamels, where different colored enamels are applied without metal dividers. The metal, usually copper, is prepared, and enamel is applied to both sides before firing. Designs are then created by drawing through a layer of wet enamel. This technique can involve painting in grisaille (shades of gray) or using multiple colors, sometimes enhanced with gold or foil for brilliance. This art form reached ambitious heights during the Renaissance, with artists attempting to replicate oil paintings on metal sheets.21