Portfolio Tag: contamination

Protective Coating in Bronzes

In this sculpture, most of the surface alterations were calcareous deposits due to hard water used for garden watering. They were eliminated  with a 10 % solution of sodium hexametaphosphate in distilled water. Afterwards, it was necessary to rinse thoroughly with distilled water to eliminate any residue. Some crevices with unstable corrosions were treated to…
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