Whether your metal gate has begun to deteriorate or attract rust, you should be able to transform it by effectively removing the rust and adding a fresh coat of paint. Of course, the most important aspect of this process will involve the complete removal of any rust. While this may take several hours of your time, it is certainly less expensive than having to replace the gate completely.
Put on your gloves and safety glasses. Remove any loose rust on your metal gate or fence with a wire brush or steel wool.
Apply the rust stripper with a small paintbrush. Allow the product to sit for at least 15 minutes before washing it off with a hose.
Remove any remaining rust with your wire brush and wash the gate or fence off again. Allow the fence to dry before continuing.
Apply a single coat of outdoor metal primer with your paintbrush. Allow the paint to dry before proceeding.
Finish the gate or fence with two coats of exterior metal paint in the colour of your choice, allowing time for the paint to dry between coats.