Galvanic corrosion is a common issue in bronze sculptures that incorporate mixed metals, leading to aesthetic and structural damage over time. To preserve these artworks, several effective prevention methods can be employed.

1. Use Dielectric Insulators: Separate dissimilar metals with non-conductive materials like nylon or rubber gaskets to break electrical contact and prevent galvanic reactions.

2. Apply Protective Coatings: Coat metals with paints, lacquers, or specialized sealants to create a barrier against moisture and electrolytes that trigger corrosion.

3. Select Compatible Metals: Choose metals with similar electrochemical properties to minimize galvanic potential, such as pairing bronze with brass or copper.

4. Implement Cathodic Protection: Attach sacrificial anodes (e.g., zinc) to the sculpture, which corrode preferentially, protecting the bronze and other metals.

5. Control Environmental Exposure: Limit exposure to humidity, saltwater, or pollutants by displaying sculptures indoors or using climate-controlled cases.

6. Regular Maintenance: Inspect and clean sculptures periodically to remove corrosive agents and reapply protective coatings as needed.

By combining these strategies, artists and conservators can significantly reduce galvanic corrosion risks, ensuring bronze sculptures with mixed metals remain pristine for generations.