Hey everyone, hoping to get some advice on rust stains. I’ve had success getting them out of granite in the past, but I’m struggling with some natural stone pieces where the stains seem a lot deeper. Nothing I’ve tried so far has really touched them. Does anyone have a specific product or method they recommend for this? Thanks for your help.
OneRestore or f9 barc is what has worked for us.
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Oxalic acid, I like getting powdered and mixing with water. That looks deep so when it gets wet, it may be visible, even after partial removal.
