Abstract: The invention relates to a solvent-free powder enamelling composition comprising an enamel frit and a thermosetting resin. In order to produce a part formed from enamelled sheet metal, a layer of said enamelling composition is applied to at least one face of a piece of flat sheet metal. Said layer is then heated in order to cross-link the thermosetting resin. Subsequently, the sheet which is coated with the cross-linked composition is then formed and baked, first to pyrolyse the organic matter in the composition and then to vitrify the enamel frit.