Step 1 scrape the rust.
How to fix rust spots on garage door.
Step 3 use vinegar.
Be careful not to.
Sand the entire door again to smooth over.
How to fix a rusting bottom panel on a garage door 1.
Using the sander and coarse grit sandpaper sand the entire door.
Remove the coarse grit paper from the sander and replace it with medium grit.
Step 5 clean the door.
Removing rust from metal doors.
Scrub gently at rusted areas on the door surface.
Dip a cloth into white vinegar and wipe the rusty area.
Scrape away paint flakes caused by the rust.
Step 4 apply baking soda.
Use a water hose to rinse the door s surface.
Spray a metal cleaning agent on the door s surface.
Close the garage door.
Scrub the rust off with a steel wool pad wiping it often.
Step 2 apply sandpaper.
Close and secure the garage door so that it does not accidentally open while you are repairing it.
Use a long handled scrub brush to loosen hardened residue.
Clean the bottom panel of the garage door with warm water and a grease fighting dish washing.