Treating Frescos with Light?

December 6 2021

Image of Treating Frescos with Light?

Picture: finestresullarte.info

Posted by Adam Busiakiewicz:

Interesting news from Italy that scholars from the University of Bologna and the Spanish firm CSIC (Consejo Superior de Investigaciones Científicas) have invented and patented a new technique to treat painted frescos. The technique involved coating frescos with a certain solution that is then subjected to light of a specific wavelength that helps dissolve calcium carbonate crystals. Such crystals are said to be one of the main causes for frescos to deteriorate. This method, it seems, can be used in a very precise way and is equally rather cost effective too.

The image pictured purports to show frescos treated using this very technique.

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