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I have Bluestone interior floors in new construction. Ready to finish but slight paint overspray and several glue spots. Is there a problem using a diluted muriatic acid to clean?

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Which type of bluestone do you have? It ranges in toughness from basalt to limestone: en.wikipedia.org/wiki/Bluestone –  Wayfaring Stranger Sep 22 '13 at 1:28
    
What kind of paint? –  HerrBag Sep 23 '13 at 19:59
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1 Answer

Muriatic could be a bit harsh, causing a 'bleached' spot. Many natural stones are sensitive to acids, most being alkaline (from types of limestone).

A "citrus" paint stripper could be less harsh, but it is acidic, also.

I would use ammonia and a soft nylon hand brush, alternating after rinses with a mild detergent.

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