Choose a primer designed specifically for metal and for outdoor use if you re painting an exterior door.
Protect metal garage door from rust.
One of the main steps to preventing rust is to lubricate the garage door parts focusing mainly on.
Cleaning the garage door on a regular basis is necessary to prevent dirt and salt from accumulating.
Roughen the surface of the metal garage door with a hand sander and medium grit sandpaper.
Sand the entire door not just the oxidized areas to help the primer stick to the door.
Primer can also help prevent future rust on the door.
Priming the metal doors is an important step to ensure you get a smooth finish.
A spray primer is often easier to apply in even layers without brush marks.
How to prevent rust buildup on your garage door keep the door clean.
Let the primer dry.
Applying in a well ventilated area prime door using the krylon rust protector rust preventative primer gray holding the can 6 8 inches from the surface and using a sweeping side to side motion with slight overlap.
Brush the door with soap and water starting at the bottom where the rust is concentrated rinse thoroughly and let dry dip an old cloth in white vinegar do not use cider or spiced.
If paint or rust is flaking off the surface use a wire brush or sandpaper to remove it.