Rinse until water sheets off of the door and no bubbles remain.
How to clean white metal garage doors.
Rinse the door with water from your garden hose.
White tire cleaner was suggested for cleaning the white rubber strips around the doors.
If the door is very dirty or mildew stained you can also use a very soft bristled brush.
Clean your door from top to bottom making sure to clean behind the stop molding on the sides and top of the door.
Remember to clean in a uniform manner no swirls diagonal lines etc.
Remove all chalk and oxidation wiping with a rag if necessary.
Spray the entire door thoroughly.
Wash the garage door with warm water and a mild detergent.
Working from the bottom panel up wash the steel garage door with a cloth or sponge soaked in the cleaning solution.
Using a clean bucket mix a small amount of dish soap or car wash soap preferred with water with a soft sponge or cloth apply the soap to the door in a circular motion rinse off with garden hose for steel or fiberglass doors apply a light coat of spray car wax.
Just spray the white vinegar onto the door allow it to sit for five minutes and then go over it with a wet sponge.
I made an executive decision to use cleaning supplies that i had at home instead of driving to a store to purchase something new.
Rinse well and let dry.
When washing the garage door use one cup of nontoxic biodegradable cleaner mixed with two gallons of warm water.
Scrub it with a rag or nylon scrub brush.
Some people said mild dish detergent.
Spray the surface of the metal door with the soapy mixture or tsp.
How the door looks clean and wet is how the door will look coated.
Begin at the top of the door and allow the spray to run down the door.
Lots of other suggested cleaners included bleach.