• When painting new exterior construction where
non-galvanized nails have been used, it is advisable to first
countersink the nailheads, then caulk them with a top quality,
waterbased all-acrylic or siliconized acrylic caulk. Each nailhead
area should be spot primed, then painted with a quality latex
coating. When repainting exteriors where nailhead rusting has
occurred, wash off rust stains, sand the nailheads, then follow
the same surface preparation procedures as for new construction.