First clean the entire door with the water and dishwashing liquid.
How to fix rust on bottom of garage door.
How to fix a rusting bottom panel on a garage door.
Dip a cloth into white vinegar and wipe the rusty area.
An alternate product might be corroseal which is a rust converter and latex primer in one which can then be topcoated with a latex paint.
Rinse thoroughly and let dry.
Rinse and allow to dry.
Soak the cloth in white vinegar and wipe all rusted areas.
Clean the bottom panel of the garage door with warm water and a grease fighting dish washing liquid.
Repeat this until the.
Brush the door with soap and water starting at the bottom where the rust is concentrated.
In this video i focus on door bottom rust repair and will be showing you how to remove and replace a lower door skin on a car or truck.
The rust oleum product shown recommends an oil based top coat which should not be used when repainting a metal garage door.
The vinegar reacts with the rust and dissolves it.
Cleaning steel and aluminum doors.