Black Galaxy doctored

I have a consult with a person with water rings on her black galaxy. It is not granite that we installed, it came on furniture ordered from Georgia. I have read your post about water rings on Black Galaxy. Is there a way to remove the stain (black) in the Black galaxy, (acetone wiped on the surface did not bring up any color). I have printed the article and will pass it on to the customer. thanks, B Quirke

 

Dear B:

Acetone will seldom do anything. The “masters” of malicious doctoring have gotten so good that their “magic shoe-shine” is resistant to most solvent. It is not resistant to acids, though.

Soak it with a solution of water an phosphoric acid. That'll do it.

 

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