A razor blade can remove the rest of the paint if the last two steps do not complete the job.
How to fix oil based paint stains in aluminum siding.
Blisters will eventually break and begin peel.
Then they thin this by adding one pint of paint thinner.
Lower quality paint was used.
Put on a pair of latex or rubber gloves.
Caulk as required with appropriate caulking product.
Rub the spot with a rag dampened in warm soapy water to remove any not yet dried paint from the surface.
One formula many painting contractors use to prime aluminum or steel siding is made by thinning down oil based metal primer.
Repair and prevention.
Scrape away old peeling paint and feather sand affected areas.
Rub a generous coat of the soyclean paint stripper on the aluminum siding.
Oxidization can make the aluminum siding look ugly and it needs to be removed as quickly as possible.
Then use a regular hose to remove the paint and stripper from the aluminum siding.
The paint will separate from the siding prematurely.
Scrub at the stain turning and rewetting the rag frequently.
An oil based paint was applied over a wet surface.
Aluminum siding cannot rust and it s a very durable material however there are numerous things that can cause it to oxidize.
Place a little water in a small basin and mix in a couple of drops of laundry detergent dip a soft cloth or soft bristled brush in the solution and use it to gently scrub off the stain if it doesn t come off rinse the spot off with water before using a little isopropyl alcohol to rub the paint stain until it s gone.
Then scrub the solution into the aluminum siding until the stain is gone.
If it is oil based deck stain applied within a day or so mineral spirits should remove it.
When they do this they start with one gallon of high quality oil based primer.
To use it add a few drops liquid dish soap to water and mix until it s sudsy.
Blistering paint was allowed to progress.
Take the razor blade to any remaining paint left on the aluminum siding.
Liquid dish soap will enhance water s ability to remove paint spots and is the next best option if water did not work to remove the stain.
Spot prime bare area.
The sooner you treat the stain the better.
Saturate a rag with mineral spirits.