Metal sculptures are prized for their durability and aesthetic appeal, but they face threats from biological and environmental factors like rust, mold, and pollution. To combat these issues, artists employ several strategies.

First, material selection is critical. Stainless steel, bronze, and corten steel are popular for their natural resistance to corrosion. For added protection, artists apply protective coatings such as wax, lacquer, or specialized sealants to create a barrier against moisture and pollutants.

Regular maintenance is another key practice. Cleaning sculptures with mild detergents and inspecting them for early signs of damage helps prevent long-term degradation. In outdoor settings, galvanization or powder coating provides extra defense against harsh weather.

Innovative techniques like electrochemical treatments or sacrificial anodes (used in marine environments) further enhance resistance. By combining these methods, artists ensure their metal sculptures remain vibrant and structurally sound for generations.