If the painted ornamental fence surrounding your home has rust spots on its surface, remove them with the following steps. After finishing, add a couple coats of rust-inhibiting primer and paint to the fence's surface to protect it from additional damage down the road

Materials

• emery cloth
• naval jelly
• paintbrush
• water hose
• scrub brush 
• industrial-strength detergent
• bucket
• masking tape
• plastic sheeting
• air-powered paint gun
• rust-inhibiting primer
• rust-inhibiting paint

Remove The Rust

Move an emery cloth back and forth over each rust spot. Consistent pressure needs to be placed to the back of the cloth to assist with loosening the rust. If any rust spots are large and you aren't able to remove them solely with the cloth, apply naval jelly to them with a paint brush. Naval jelly is a product that will assist with dissolving the rust. Leave the naval jelly on the fence's surface for several minutes before sanding the rust spots.

Once all of the rust has been removed, clean the fence with a scrub brush that has been dipped into a bucket of soapy water. Rinse the fence off well and allow plenty of time for it to dry.

Apply Rust-Inhibiting Primer And Paint

Cover grass or dirt next to the fence with plastic sheeting. Cover any trim on the fence that you do not want exposed to primer and paint with strips of masking tape. Fill a paint gun's paint chamber with rust-inhibiting primer. Plug in the gun and squeeze the trigger to release the primer.

Begin at one end of the fence and apply the primer to one side of it as evenly as possible by moving the gun up and down as the primer is released from the nozzle. Move the gun along the length of the fence until it is covered completely.

Move to the other side of the fence and add a coat of primer in the same manner. Give the primer a few hours to dry. Rinse the paint gun's chamber out well with a water hose before adding rust-inhibiting paint to it. Apply the paint to the fence using the same steps that you previously did. After the first coat of paint dries, add a second coat to ensure that the fence's iron surface is covered completely. Remove strips of tape from the trim on the fence once the paint dries. The fence will look newer and won't be susceptible to rust any longer. You can click here for more info on iron fencing.