Bronze, brass, and copper sculptures each have unique maintenance requirements due to their distinct compositions and aging processes. Bronze, an alloy of copper and tin, develops a protective patina over time, reducing the need for frequent polishing. However, it may require occasional waxing to prevent excessive oxidation. Brass, a mix of copper and zinc, tarnishes more quickly and needs regular polishing to maintain its golden shine. Copper sculptures, while durable, are prone to verdigris (a greenish patina), which some artists embrace for its aesthetic appeal but others may wish to control with specialized cleaners.

For long-term care, bronze is often the easiest to maintain due to its stable patina, while brass demands more attention to retain its luster. Copper falls somewhere in between, depending on the desired finish. Proper storage and avoiding harsh chemicals are essential for all three metals to ensure their longevity. Understanding these differences helps collectors and artists make informed decisions about preserving their metal artworks.