I have successfully removed dark spot from limestone by dry sanding.

It not un common for some limestone darken when they become too wet. In this case dry sanding has worked.

John E Freitag

Owner/Director

The Stone & Tile School

Office 407-567-7680

Cell 407-615-0134

schoollogo

www.thestoneandtileschool.com

From: list-manager@stoneandtilepros.simplelists.com [mailto:list-manager@stoneandtilepros.simplelists.com] On Behalf Of Randy Frye
Sent: Wednesday, April 06, 2016 8:26 AM
To: sccpartners@stoneandtilepros.simplelists.com
Subject: Re: Stains on limestone - urgent

Maybe try sanding it out if it's just on the surface

Best Regards,

Randy Frye, CEI Surface Pros

www.ceisurfacepros.com

239-253-1991

On Apr 5, 2016, at 10:38 PM, Adam Bartos <info@restoreyourtiles.com> wrote:

Last week we cleaned limestone walls and floors for the residential customer using our truck mount. We came back yesterday to seal the floor and were surprised by the look of one slab, with one continues stain at the bottom. It lookes like iron oxidation and it is only 1 slab out of 6. We tried iron out but that didn't help.
Any idea why something like that happened?
What can I use or do to remove it?
I am going back there on Thursday and I need your help very badly. I am puzzled and without any ideas. I am attaching picture for u to see it.
Thanks
Adam Bartos
BiO Tile
 
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