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Old 26.11.2020, 22:23
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Re: Cleaning kitchen granite

Believe it or not, if you have patience and a steady hand, a single edge razor blade will gently scrape away the calc. It's a surface thing for the most part, not embedded in the granite. Check out videos on YT. I've read you can try the finest grit sandpaper too, probably similar to the putzstein shown above. I've only done the blade and diluted durgol that was wiped on and off quickly and not allowed to sit.
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