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How to Clean Oil Paintings With Asitone
Auction houses and restorers couldn't do their work quickly enough to discover the forgery. One of those techniques was injecting a lacquer to glue the painting to the stretcher. Normal oil paint takes about 25 years to become insoluble, so it be cleaned with asitone and not break down. However, paint that was only maybe a year or less old, if it was cleaned, would start dissolving in a cleaning.