A method of protecting objects from graffiti using fluorinated polymers based on fluoropolyethers in a dry formulation wherein the fluorinated polymer includes a fluorinated part R.sub.F and optionally an hydrogenated part R.sub.H not containing groups capable of linking to basic acceptors by means of hydrogen bonds, the bonds linking the fluorinated part, derived from (per)fluoropolyethers, to the hydrogenated part being of simple C--O ether type, the T' terminal groups being such as to render the structure bi- or polyfunctional thus making possible the curing reaction, and subsequent curing of the fluorinated polymer.