Method and installation for surface marking of a substrate

A method for surface marking a solid substrate (1), according to which, during an exposure sequence, said substrate is exposed to coherent monochromatic light (2) in order to strip said substrate over an indented surface (3), wherein the exposure conditions, including duration, are set in order to restrict said indented surface to simple abrasion designed for the bonding of a printing medium, and the exposure sequence is followed by a sequence of projecting in discrete form during which particles (6) of said printing medium, the deposition of which subsequently defines a printed element (4), are projected in targeted fashion into the indented surface (3, 31), wherein the projecting sequence is carried out in liquid form, by virtue of which the particles (6) are droplets in liquid form, the deposition of which defines a printed element (4), after drying, and wherein the droplets (6) comprise a polymerizable printing medium, and, after the printing medium has been deposited on the indented surface (3, 31), this printing medium is polymerized under exposure to ultraviolet light, for example monochromatic and coherent ultraviolet light.