Metal sculptures in coastal or saltwater environments face unique challenges due to corrosion, but material selection and protective techniques can ensure longevity. Stainless steel, bronze, and corten steel are among the most resistant metals, each offering distinct advantages. Stainless steel's chromium content forms a passive oxide layer, while bronze develops a protective patina. Corten steel intentionally rusts to create a stable outer layer.

Regular maintenance, such as rinsing with fresh water and applying protective wax, significantly extends a sculpture's lifespan. Powder coating and galvanization provide additional barriers against saltwater damage. Artists often incorporate corrosion into designs, embracing the weathered aesthetic.

For optimal performance, sculptures should be elevated from direct ground contact and placed in well-ventilated areas to prevent moisture accumulation. Understanding these factors helps collectors and artists make informed decisions about coastal installations, preserving artistic integrity against harsh marine conditions.