Since the 1950s monochrome paint surfaces have become a common feature in art. Monochrome surfaces are extremly vulnerable and any disturbance will be clearly visible. Damages in these paint surfaces often are impossible to retouch satisfactorily without the original material. Furthermore the surface texture and gloss are extremely important to match.
The object shown here had numerous scratches and losses in the matte bright blue paint surface. Retouching had to match the matte quality of the paint surface and be removable with water.