Cleaning a Painting A discovery process and the “unknown factor”
G.A. Cuomo c. 1880
When I got this Victorian 1880’s oil painting from a friend/client (Thom Gianetto at Edenhurst Gallery) I thought the yellowed varnish would be an easy/quick, safe (for the painting) removal. After 40 years of cleaning paintings, you would think that I could just “eye ball” it… but its better to be humble and ere on the side of caution. Some people think that cleaning a painting is a per square inch type of estimating and that I should be able to do it over the phone. But to clean an old oil painting safely, we need to do solubility tests with each of the solvents we might use to make sure they dissolve the varnish without dissolving the original paint! Sometimes we use a head-mounted magnifier to get a closer look and sometimes we use a stereobinocular microscope! Varnish qualities vary widely and just when you think it looks “normal” you find that the varnish in question won’t come off with the usual stand bys. I thought this painting would take about $300 in time and materials to clean but instead, it resisted and took about $1,200.00 in time and materials to clean completely (no yellowed varnish left behind) and safely (no adverse affects on the original paint). So, as you can see, the cleaning process (as are some of the other art conservation