Ahead of engraving or sprucing gold leaf, at Pigmentti, we put together the work with 16 levels of Gesso Bologna, 8 layers of bole before at last water gilding. Water gilding is applied to attain a mirror complete on glass, but can also be made use of on bole (clay) https://water-gilding-gold-leaf91098.blogzet.com/the-definitive-guide-to-gold-leaf-gilding-supplies-36514260