Grand Central Terminal
John Canning & Co. formulated the cleaning agent and process for the thorough and harmless conservation cleaning and restoration of the Grand Central Terminal ceiling mural
John Canning & Co.’s main mission in conserving the Sky Mural was to stabilize the existing finishes, remove the heavy buildup of soot and grime created by the exhaust of the train engines and air pollution (but NOT cigarette or cigar smoke), without damaging the finishes. Our conservators spent several weeks developing an aqueous cleaning agent that completely removed the dirt, without harm to the artwork. Only a few areas required paint and gilding touch ups. See our article with full project details here.
1998 Best of Awards: Restoration Project, New York Construction News