The W&N Artists Oil Additive 75ml Picture Cleaner by Winsor & Newton is a specially formulated cleaning solution for varnished paintings. This natural resin and oil emulsion contains ammonia and works effectively by dissolving the oxidation of linseed oil. It removes surface dirt as well as the products of oxidation in old varnish, helping to preserve the lifespan and visual quality of artworks. Careful handling is required during application: the bottle should be shaken well before and during use, and small areas can be cleaned with a cotton pad. After cleaning, it is important to remove all residues with distilled turpentine. Extra caution is advised for unvarnished paintings to avoid color loss. For the best results, it is recommended to have the cleaning performed by a qualified restorer, especially when old varnish needs to be removed.

• Natural resin and oil emulsion for gentle cleaning
• Effectively dissolves oxidation of linseed oil
• Removes surface dirt and oxidation products
• Caution recommended for unvarnished paintings.