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.
How to clean white metal garage doors.
Begin at the top of the door and allow the spray to run down the door.
Spray the surface of the metal door with the soapy mixture or tsp.
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.
Spray the entire door thoroughly.
How the door looks clean and wet is how the door will look coated.
Rinse until water sheets off of the door and no bubbles remain.
Remove all chalk and oxidation wiping with a rag if necessary.
White tire cleaner was suggested for cleaning the white rubber strips around the doors.
Clean the garage door with ez prep cleaner and water.
Some people said mild dish detergent.
Wash the garage door with warm water and a mild detergent.
Scrub it with a rag or nylon scrub brush.
Rinse the door with water from your garden hose.
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.
White vinegar is a perfect cleaner for your metal doors and it is safe to use.
One cup of simple green or other non toxic biodegradable cleaner less than 0 5 phosphate into two gallons of warm water or household liquid dishwashing detergent such as dawn.
Remember to clean in a uniform manner no swirls diagonal lines etc.
When washing the garage door use one cup of nontoxic biodegradable cleaner mixed with two gallons of warm water.