Rust is a natural process that occurs when metal is in the presence of oxygen and water. You can salvage a rusted surface by applying a fresh coat of the appropriate paint. However, before you begin the application process, you will need to seal the rust or you will see a reappearance of the problem. In addition, you will need to condition the metal to promote paint adhesion, or the finish will chip and peel over time.
Things You'll Need
- Wire brush
- 80-grit sandpaper
- Blue painter's tape
- Heavy-duty fabric dropcloth
- 2- to 4-inch oil-based paintbrush
- Red oxide zinc chromate primer
- Mineral spirits
- Oil-based enamel paint
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Protect your hands by donning gloves.
Remove loose particles of rust using a wire brush.
Sand down any remaining bits of rust using 80-grit sandpaper.
Cover areas you do not want painted with painter's tape. Cover areas beneath the metal with dropcloths.
Brush on a coat of red oxide zinc chromate primer. Apply using an oil-based paintbrush. Do not use a latex paintbrush, as this will ruin the brush. Clean the oil-based paintbrush using mineral spirits. Wait at least four full hours for the zinc chromate primer to dry.
Brush on a coat of oil-based enamel using the clean, oil-based paintbrush.