1. Light Rust Treatment: Gently sand the rusted areas with fine sandpaper or a wire brush, being careful not to damage the surface.
Apply white vinegar or lemon juice to the rusted area, let it sit, and then wipe it off. Suitable for small areas of rust.
2. Stubborn Rust Treatment: Sandblasting equipment effectively removes large areas of rust; requires professional operation.
After spraying a specialized rust remover, wipe the surface according to the instructions, taking precautions.
3. Rust Prevention and Maintenance: After rust removal, apply rust-preventive paint or wax to form a protective film.
Regularly inspect the lighthouse and promptly treat any new rust.

