Unless nails are galvanized, they will rust over time. Unfortunately, many amateur do-it-yourselfers underestimate the power of rust, and attempt to seal nails either with paint or a basic bonding primer. This will always result in the classic yellow tinge of bleed-through associated with rust stains. If you need to paint the exterior of a home that has rusty nails, you'll have to use a specific primer to seal the rust to prevent bleed-through.
Things You'll Need
- Pressure washer
- Blue painter's tape
- Heavy-duty fabric drop-cloths
- 80-grit sandpaper
- Spray cans of Rust-oleum Zerolac
- 5-gallon bucket
- Nap roller cover
- Roller frame
- 3- to 4-inch paintbrush
- Latex paint
- Extension ladder
Rinse away cob webs, dust and dirt using a pressure washer. Allow the surface to dry completely.
Apply blue painter's tape to areas you do not want painted. Cover larger areas like porches and sidewalks using heavy-duty fabric drop-cloths.
Sand away loose rust using 80-grit sandpaper.
Spray the rusty nails with Rust-oleum Zerolac, effectively sealing them to prevent bleed-through in the final finish. Allow the surface to dry for two hours.
Fill the 5-gallon bucket half-way with exterior acrylic latex paint. Affix the nap cover to the roller frame.
Apply paint to the exterior of the home using the roller. Apply paint to any tight or detailed areas inaccessible to the roller using a 3- to 4-inch paintbrush.