Copper metal modelingCopper metal modeling It will be transformed into a piece of art that is full of weight. The sculpture is carved to a certain extent, and after it has completely dried (about 1 to 2 weeks), the details are finished with a carving knife, copper foil is applied, and the piece is smoked and polished to finish. Engraving clay: approx. 165 x 90 x 25 mm, copper foil: 140 x 300 mm Engraving clay (480g) x 1, copper foil sticker (140 x 300mm) x 2