Vatican removes salty white film coating Michelangelo’s ‘The Last Judgment’

VATICAN CITY (AP) — Michelangelo’s “The Last Judgement” is getting a facial, with restorers removing a chalky white film of salt that has accumulated over the Renaissance masterpiece since its last major renovation three decades ago.

The Vatican on Saturday gave the media a sneak peak to the cleaning operation, which is taking place on a floor-to-ceiling scaffolding that has obscured the imposing fresco of heaven and hell that dominates the front of the chapel.

The cleaning operation is expected to be completed by Easter, in the first week of April. The public can continue to visit in the meantime, but will have to settle for a reproduction of “The Last Judgment” superimposed on a screen that covers the scaffolding.

Vatican Museum officials on Saturday described a simple but important cleaning operation to remove the white film of salt that has accumulated on the fresco thanks to the nearly 25,000 people who pass through the Vatican Museums each day.

“This salt is created because, above all, when we sweat, we emit lactic acid, and unfortunately lactic acid reacts with the calcium carbonate present on the wall,” said Fabio Moresi, in charge of the scientific research team at the Vatican