Covering unsightly rust with paint

A rusting nail that is still doing its job is harmless, right? Well, that very nail may actually be detracting from the overall appearance of an exterior wall, fence or other outdoor painted structure. Rusting nails can stain the painted surface. Replacing nails may be quite the ordeal, but if you follow these guidelines, you can cover them to improve the appearance of the surface.
Nail Head Rusting
A building’s beautiful outward appearance is what gives it curb appeal. Nail head rusting can ruin the overall impression.


Nail Head Rusting
To remove nail head rusting from surfaces:
*WARNING! If you scrape, sand, or remove old paint, you may release lead dust or fumes. LEAD IS TOXIC. EXPOSURE TO LEAD DUST OR FUMES CAN CAUSE SERIOUS ILLNESS, SUCH AS BRAIN DAMAGE, ESPECIALLY IN CHILDREN. PREGNANT WOMEN SHOULD ALSO AVOID EXPOSURE. Wear a properly fitted NIOSH-approved respirator and prevent skin contact to control lead exposure. Clean up carefully with a HEPA vacuum and a wet mop. Before you start, find out how to protect yourself and your family by contacting the USEPA National Lead Information Hotline at 1-800-424-LEAD or log on to www.epa.gov/lead.
Nail Head Rusting
If no preventive steps are taken when painting a surface with nails for the first time, nail head rust will eventually rise to the top and cause rust stain.
This is especially the case when the nail heads have been sanded, with no other pre-painting preparation.
Caulking and priming the exposed nails prior to painting greatly reduces the risk of future nail head rusting problems.

