Artists employ several strategies to ensure their metal sculptures remain resistant to biological growth like lichen. One common method is selecting corrosion-resistant metals such as stainless steel, bronze, or aluminum, which naturally deter organic colonization. Additionally, applying protective coatings like wax, lacquer, or specialized sealants creates a barrier against moisture and spores. Regular cleaning with mild solutions removes dirt and organic matter that could foster growth. Some artists also use environmentally safe biocides or UV-resistant finishes to further inhibit lichen and algae. For outdoor installations, strategic placement—avoiding damp, shaded areas—can significantly reduce biological threats. By combining material choice, proactive treatments, and maintenance, sculptors preserve their works' integrity for years.