Winsor & Newton's Artists' Picture Cleaner is a natural resin/oil emulsion containing ammonia designed for cleaning varnished paintings. It works by dissolving linseed oil oxidation and will remove surface dirt and the products of oxidation in the old varnish.
Shake before and during use. Clean small areas with cotton wool pads. When cleaning is complete remove any remaining cleaner with distilled turpentine. Batch color and settlement may vary. Unvarnished paintings may also be treated with Artists' Picture Cleaner but great care is necessary and the process should be stopped immediately if any color appears to be coming off the painting.
75ml (2.54 oz.) bottle.