One of the operations we perform, when it comes to Art Object frames for instance, is the ‘gouache’ gilding with pure 23 and ¾ carats Gold leaf. Said delicate and complex process is carried out through traditional techniques like the ones used to create the masterpieces of the past. As a first step, the frame is coated with an animal glue- and plaster-based liquid paste, then it is polished, at least three times, to achieve a homogeneous and smooth surface. After that, the frame is coated with a layer of bole, a compound of glues and inorganic pigments which, depending on its composition, will result in the chromatic shades of the coating, on which the Pure Gold leaf is applied. Once the coating is completed, the artisan shall smooth the entire surface with an agate in order to lend gold the right degree of shine. Any possible small imperfections visible in the finished item are the best guarantee of a true handcrafted work. Other frames are painted or coated with imitation gold or silver leaf, instead. In this case, the mordant technique is used: after having obtained a homogeneous background surface, glue is sprinkled on which gold and silver sheets are laid until the whole surface is covered. As a last step, a protective transparent varnish is applied, which both lends the desired shine to the surface and serves as a protective shield.