Finds use in the preparation of egg tempera. Skimmed milk with the addition of a little water and pure alcohol may, in addition, serve as a fixative for drawings, pastels, watercolours and thin temperas. Giovanni Secco Suardo (1894) refers to how milk may be used "on wall paintings to protect them from the humidity of the glue for applying the canvas," a preliminary operation for the removal or the consolidation of paintings.