Tried an Oxy booster and had poor results. Too slow to use a honing powder, and that would only deal with the stone, and make removal of the honing powder a problem. This is unfilled that was grouted in, filthy grout. Here is the result with a 10 percent formula, no machine buffing and removed with a turbo w/ 0 degree nozzles. This is the only time I have had success getting the embedded soils out of the pits, and the color is beautiful. Not sure if the gloss is any less than with an ammonium bi-flouride or strong alkaline cleaning. (Whenever cleaning limestone some gloss is usually lost as the patina is removed)
Sent via BlackBerry® from Telstra

From: "John Freitag" <jfreitag@thestoneandtileschool.com>
Date: Mon, 20 Feb 2012 09:12:27 -0500
To: Restoration and Maintenance<sccpartners@stoneandtilepros.com>
ReplyTo: "Restoration and Maintenance" <sccpartners@stoneandtilepros.com>
Subject: RE: [sccpartners] Fw:

Before using acid I would first try using Oxi Clean and honing powders to clean with. If you have a spinner tool and the pressure washing system this also works very well.

 

Acid would be my last choice,  what you are doing is etching the stone clean. This will leave the pores of the stone open and it will collect dirt much faster even if you seal the stone.

 

 

John E Freitag

Director

The Stone & Tile School

Office 407-567-7652

Cell 407-615-0134

jfreitag@thestoneandtileschool.com

 

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www.thestoneandtileschool.com

 

 

 

From: rivera.gm@gmail.com [mailto:rivera.gm@gmail.com] On Behalf Of Georgia
Sent: Friday, February 17, 2012 9:26 PM
To: Restoration and Maintenance
Subject: RE: [sccpartners] Fw:

 

And using an enhancer on that area hasn't helped with blending it in?  How deep does this etch go?

On Fri, Feb 17, 2012 at 9:23 PM, Mike Marsoun <nulifesc@bigpond.com> wrote:


------Original Message------
To: Restoration and Maintenance
Subject:
Sent: Feb 17, 2012 11:40 AM

Having a hard time getting a good clean on these travertine floors. Pictured is an acid spill that cleaned it beautifully and caused minor etching.  Thinking of a nuclear option with some phosporic acid, then a nylo grit brush afterwards to buff out the etching. Yes, I have been doing this for 25 years and I know you don't use acid on m/l/t, BUT the alkaline's are not doing it and I do not want to cover it up with grout...too slow. Thoughts.


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Kind Regards,
Georgia Rivera
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1.877.664.4376 Fax

 

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