Spray the siding down with a garden hose.
Removing oxidation from aluminum siding.
Start at the top and spray downward.
Scrub from the top to the bottom in six.
These are simply sprayed or rubbed onto the surface of the aluminum and then buffed up using a clean cloth.
Rinse the stained area with a hose to remove large pieces of dirt and debris.
Dip a sponge into the solution and apply it to the stain.
Take the razor blade to any remaining paint left on the aluminum siding.
If the oxidation is mild and light then you should be able to use an oxidation removal product without acid.
Rub a generous coat of the soyclean paint stripper on the aluminum siding.
A razor blade can remove the rest of the paint if the last two steps do not complete the job.
Then use a regular hose to remove the paint and stripper from the aluminum siding.
How to remove aluminum siding oxidation from brick step 1.
How to do oxidation removal from siding step 1.
Mix 3 cups of liquid trisodium phosphate tsp cleaner and 3 gallons of water in a large bucket.