Leather-surface repair set consisting at least of a degreaser and of a composition comprising an emulsion of polyurethane and at least one pigment component and further comprising at least one further component which allows to relatively increase or decrease the elasticity of the reacted composition. Particularly, a 2-ethylhexyl-, 2-isodecyladipate and/or triisodecylphosphate are used as the further component.A method for surface repair of leather surfaces with the steps of treating the surface area to be repaired with a degreasing agent applying a repair composition at least consisting of an emulsion of polyurethane to the spots to be repaired by filling the surface spots to be repaired with said emulsion and allowing the emulsion to polymerize.