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Jul 25th, 08, 07:36 PM
It is oxidation.
I don't think you can bleach paint that was applied 2 years ago and is an exterior paint,but I've never tried it but I have gotten roof mix on a painted dormer and never had an issue and roof mix SHOULD be way stronger than anything your spraying siding with.
In two years it shouldn't have oxidized that much,unless the paint was sprayed to thin.
If you check the side of the house that doesn't get much sun and it is oxidized than I would say cheap paint.Rub your hand on the dry siding and see if it comes off in a chalk.
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