Artists employ multiple strategies to safeguard metal sculptures in public installations against vandalism. One key approach is material selection—using hardened metals like bronze, stainless steel, or corten steel that resist scratches and dents. Many apply industrial-grade protective coatings such as polyurethane or powder coatings to create barriers against graffiti and corrosion.

Structural design also plays a role; artists often elevate sculptures on tall plinths or incorporate smooth, angled surfaces that discourage climbing or etching. Some integrate lighting and surveillance-friendly designs to deter nighttime vandalism. For high-risk areas, temporary protective covers may be used during events.

Maintenance protocols are equally important. Regular cleaning with non-abrasive methods preserves coatings, while wax layers on bronze sculptures allow easy graffiti removal. Some cities use sacrificial coatings that can be stripped and reapplied.

Innovative solutions include embedding anti-graffiti nanotechnology in surface treatments or creating interactive sculptures that engage the public, reducing destructive behavior through community ownership. By combining durable materials, smart design, and proactive maintenance, artists ensure their metal works withstand urban challenges while remaining accessible to all.