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Restoration Update — July 2011 

The conservators completed treatment of the first three murals, The Pieta, Mati, and Croatian Mothers raise their sons for war. Efflorescence of the murals were stabilized using nanoparticles and traditional Italian methods, which chemically converted materials back into a stable surface. Areas of damage were retouched to integrate losses into healthy surrounding ares of the mural. Materials for retouching were selected based on principles of conservation. The retouching materials would not introduce possible weaknesses, would remain easily reversible, and would remain permeable to water so that salts could not be trapped under the surface again.