If it was me look at the finish. If you don't know try like 220 adjust from there. if you see to flat go higher in grit 340 . If you need it less go 180 or 120 or 100. Hector CastilloSent from my Verizon Wireless 4G LTE smartphone
-------- Original message --------
From: Adam Bartos <info@restoreyourtiles.com>
Date: 04/06/2016 8:13 PM (GMT-08:00)
To: sccpartners@stoneandtilepros.simplelists.comSubject: RE: Stains on limestone - urgentJohn and Randywcbc@cs.com, what grit(s) would you recommend?
On Apr 6, 2016 7:20 PM, "John Freitag" <jfreitag@thestoneandtileschool.com> wrote: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
John E Freitag
Owner/Director
The Stone & Tile School
Office 407-567-7680
Cell 407-615-0134
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
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
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Stu Rosen
201-446-1200