The zinc chromate helps prevent further rust from developing.
Protect metal garage door from rust.
Let the primer dry.
Sand the entire door not just the oxidized areas to help the primer stick to the door.
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.
Choose a primer designed specifically for metal and for outdoor use if you re painting an exterior door.
But once your driveway is clear and the day is warm inspect the bottom of your garage door for rust or corrosion and.
How to prevent rust buildup on your garage door keep the door clean.
One of the main steps to preventing rust is to lubricate the garage door parts focusing mainly on.
Roughen the surface of the metal garage door with a hand sander and medium grit sandpaper.
If paint or rust is flaking off the surface use a wire brush or sandpaper to remove it.
Coat the sanded areas at the bottom of the garage door with a zinc chromate primer using a paintbrush.
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.