Anything acidic seems to work, but in this case a packaged marine product really does work, FSR. It's just oxalic acid in a gel base, but it is the gel base that is the magic. One, it lets it cling to a brush so you can easily apply it without having to break out a rag by hand. Second, it slows the drying just enough that it works a little longer and better. I like being able to just squirt some on a soft boat deck brush and quickly get a larger area. Don't scrub, let the product work.
The acidic products also work well for rust stains from stainless hardware.
|