Creating metal sculptures that withstand pollution requires careful planning and execution. Start by selecting corrosion-resistant metals like stainless steel, bronze, or corten steel, which naturally develop protective patinas. For added protection, apply specialized coatings such as powder coating or marine-grade epoxy paints that create barriers against pollutants.

Consider galvanization for steel sculptures, where a zinc layer prevents rust formation. Regular maintenance, including gentle cleaning with pH-neutral solutions, helps remove accumulated pollutants without damaging the surface. Electroplating with noble metals like gold or nickel can provide exceptional protection for smaller pieces.

Environmental placement significantly impacts longevity. Position sculptures away from industrial areas or coastal regions where salt accelerates corrosion. Incorporating design elements that minimize flat surfaces where pollutants can accumulate also enhances resistance.

For maximum durability, combine multiple protection methods. A corten steel sculpture with a clear wax coating, for example, benefits from both the metal's natural oxidation and added protective layers. These techniques ensure your metal artwork remains visually striking while resisting environmental damage for years to come.