Bronze sculptures are prized for their durability and aesthetic appeal, but over time, they can develop pitting—a form of localized corrosion that creates small holes or cavities on the surface. The most common causes of pitting in bronze sculptures include exposure to moisture, pollutants like sulfur dioxide, improper cleaning methods, and galvanic corrosion caused by contact with dissimilar metals. Chlorides from saltwater or de-icing agents can also accelerate pitting.

To repair pitted bronze sculptures, conservators follow a meticulous process. First, the surface is cleaned to remove dirt and corrosion products using gentle methods like steam or chemical solutions. Next, the pits are carefully filled with a compatible material, such as bronze powder mixed with epoxy resin, to match the original texture. The area is then patinated to blend with the surrounding surface, followed by the application of a protective wax or lacquer to prevent future damage.

Preventive measures, such as regular maintenance, controlled environmental conditions, and avoiding harsh cleaning agents, can significantly reduce the risk of pitting. Professional conservation ensures the sculpture’s historical and artistic integrity while prolonging its lifespan.