Method for the spot repair of scrath-resistant paint films

A method for the spot repair of a scratch-resistant paint film comprising

• (a) sanding a part which is the subject of a repair, the part to be repaired having a scratch-resistant clear paint film thereon,
• (b) sanding a part which is to be clear gradation painted outside the part to be repaired with an abrasive material,
• (c) painting the part to be repaired with a color base-paint,
• (d) applying a clear paint is wet-on-wet without curing the color base-paint,
• (e) applying a clear paint which has been diluted with a gradation agent the part which is to be clear gradation painted,
• (f) and
• (g) polishing the parts which have been gradation painted,
• wherein (1) the clear paint is a two-liquid paint comprising an isocyanate curing agent and (2) the gradation agent comprises a solvent which comprises ethyl ethoxypropionate, an acrylic resin, a surfactant and a curing catalyst and the amount of ethyl ethoxypropionate in the gradation agent is from 5 to 50 mass % and the acrylic resin content as solid fraction is from 1 to 5 mass %.