Quote:
Originally Posted by mrwindow
No dout, seems like you'll lose paint on any gutter if you leave a chemical like that on to long. We spray bleach first on really bad gutters, then we use Gutter Zap applied w/ a conforming pad -- note that the dwell time limit for the chemical left on the gutter is super important for fantastic results.
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Looks great, Pat!
I got in a bind and had to use some off-the-shelf stuff to clean some gutters. They cleaned up OK but I did notice some milkiness in the brush from dissolved paint.
I like F-13 because if you leave it on too long it just sets the stain back down and you have to rescrub it but it doesn't hurt the paint. It only affects the oxidation.