They sell flat white spray paint at every hardware store. I think they even sell a can called gutter touch up. It’s an easy fix. I stripped a gutter bear once when I first started. If your going to clean them with 13 you need to get a feel for the concentration and the dwell time. I switched to degreaser if we really need it. I wont spray anything stronger than hw on any gutter that looks old.or painted and I make sure to mention it in the initial walk through pre wash.
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