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I've been told acid would take the lime stains out of our sandstone walkway. Do you have a better safer solution?

by LiveModern Webmaster last modified Sep 12, 2012 01:00 AM
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by last modified Sep 11, 2012

Last September, we had sandstone put down for an outside entrance way. It was too cold too seal it last year and it's been so hot this year I never attempted it. Now we have lime stains (whitish in color) mainly on the grout. I've been told acid would take the stains out but I don't want to touch the stuff. Do you have a better solution? Also, it looks like water stains around some of the stone, anyway to take those out? The stone if very porous and I was told not to use anything acidic when we bought the stone. I sure hope you can help as I've purchased some impregnator and before I put it down, I would like to try to get those stains out.




 

 

Last September, we had sandstone put down for an outside entrance way. It was too cold too seal it last year and it's been so hot this year I never attempted it. Now we have lime stains (whitish in color) mainly on the grout. I've been told acid would take the stains out but I don't want to touch the stuff. Do you have a better solution? Also, it looks like water stains around some of the stone, anyway to take those out? The stone if very porous and I was told not to use anything acidic when we bought the stone. I sure hope you can help as I've purchased some impregnator and before I put it down, I would like to try to get those stains out.

I can't say for sure, but if it was to cold to seal the masons may have used a calcium compound in the mortar to keep it from freezing. This...



 

 

 
 
 

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