A spray primer is often easier to apply in even layers without brush marks.
Protect metal garage door from rust.
Priming the metal doors is an important step to ensure you get a smooth finish.
One of the main steps to preventing rust is to lubricate the garage door parts focusing mainly on.
But once your driveway is clear and the day is warm inspect the bottom of your garage door for rust or corrosion and.
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.
Roughen the surface of the metal garage door with a hand sander and medium grit sandpaper.
Primer can also help prevent future rust on the door.
Let the primer dry.
Sand the entire door not just the oxidized areas to help the primer stick to the door.
Coat the sanded areas at the bottom of the garage door with a zinc chromate primer using a paintbrush.
Choose a primer designed specifically for metal and for outdoor use if you re painting an exterior door.
The zinc chromate helps prevent further rust from developing.