Quote:
Originally Posted by PressureX
Thanks for all the help. I did notice that the paint could be basically scratched off chalky.
Jeff, butyl based cleaners or oxalic won't damage the paint or siding?
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Not if used at proper dilution rates. If you're not familiar with butyl based just be very cautious. Start with a mix of 1 qt. of something like Castrol Super Clean or Purple Power to 3 qts. water, that shouldn't hurt anything and by looking at the pictures I'd say you're not gonna hurt anything at an even stronger percentage. Test spots. I use oxalic mixed at 1 cup per 5 gallons of water, that won't hurt that siding, but still do a test spot. Butyl based is often used for removing oxidation, just learn to use it.
Jeff