First clean the entire door with the water and dishwashing liquid.
How to fix rust on bottom of garage door.
Dip an old cloth in white vinegar do not use cider or spiced vinegar and wipe the rusted areas with a steel wool pad.
How to fix a rusting bottom panel on a garage door.
Scrub the rust off with a steel wool pad.
Cleaning steel and aluminum doors.
Dip a cloth into white vinegar and wipe the rusty area.
Brush the door with soap and water starting at the bottom where the rust is concentrated.
Repeat this until the.
Close the garage door.
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 vinegar reacts with the rust and dissolves it.
Rinse thoroughly and let dry.
Soak the cloth in white vinegar and wipe all rusted areas.
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.