Let the primer dry.
Protect metal garage door from rust.
A spray primer is often easier to apply in even layers without brush marks.
Cleaning the garage door on a regular basis is necessary to prevent dirt and salt from accumulating.
One of the main steps to preventing rust is to lubricate the garage door parts focusing mainly on.
If paint or rust is flaking off the surface use a wire brush or sandpaper to remove it.
How to prevent rust buildup on your garage door keep the door clean.
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.
Priming the metal doors is an important step to ensure you get a smooth finish.
The zinc chromate helps prevent further rust from developing.
Choose a primer designed specifically for metal and for outdoor use if you re painting an exterior door.
Coat the sanded areas at the bottom of the garage door with a zinc chromate primer using a paintbrush.
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.