<p>A tire coating for imparting gloss to a relatively flexible and elastic surface of tires or bumpers of automobiles without causing stickiness, adhesion of contaminant or cracking in the coating. This tire coating can be cleaned with a common car shampoo. Specifically disclosed is a tire coating agent which is characterized in that it is obtained by dissolving a silicone graft acrylic resin having a specific chemical structure is into a solvent.</p>