Adam,It happens-The floor may have been wet when you finished the job so it may have looked uniform.Try the iron out it may do the trick.Are you sure it is limestone and not white thassos. I cant tell from the pic. Use the rsr 2000 to test it.I think your probably right about the stain being there under all the muck but like you said hard to prove. Did your tech see it before he sealed.Generally white stones can have an iron content and are capable of rusting which is iron oxidation. I have seen it many times with carrara,other white stones and often with Kashmir white (a granite).
--On Mon, May 14, 2012 at 5:53 PM, Adam <info@restoreyourtiles.com> wrote:
Stu, The shower is about 4 years old. I didn't see any stain before because it had so much soap scum and body oils build up. Customer said it wasn't there (of course) and is being ass about it. It is possible that it could be there before but I can't prove it at this time.What exactly is iron oxidation and what causes it?The alpha product is good I only use it for testing purposes.
It turns purple and you have to work fast real fast.
It can stain very porous stones.
Stick with the iron out. Use it straight mixed with water.
Works well. Open area to 80/120 g sandpaper.
How old is shower floor.
Does drain work well.
Was stain there prior to refinishing.
On May 14, 2012 5:19 PM, "Adam" <info@restoreyourtiles.com> wrote:John. Would rsr-2000 work?
Adam Bartos
BiO Tile & Grout Restoration
773-575-5515 (c)
847-438-0212 (o)
www.RestoreYourTiles.com
On May 14, 2012, at 3:47 PM, "John Freitag" <jfreitag@thestoneandtileschool.com> wrote:
> Adam,
>
> First it appears that water is getting under the stone and thus causing the
> stone to oxide. I would first try to determine where the moisture is getting
> under the stone and allow the stone to dry, perhaps even place a
> dehumidifier in the area to assist in drying the floor. then apply a
> poultice to remove the iron stains.,
>
> I would open the floor with a 120 diamond to assist in the drying and then
> apply the poultice using iron out. This may take several application to
> remove.
>
> Unless you stop the moisture from getting into the stone the oxidation is
> going to occur again. Be sure to seal after you remove all the stains.
>
> Also the iron out is going to etch the stone so you will need to refinish
> the stone.
>
>
> John E Freitag
> Director
> The Stone & Tile School
> Office 407-567-7652
> Cell 407-615-0134
> jfreitag@thestoneandtileschool.com
>
>
>
> www.thestoneandtileschool.com
>
>
>
> -----Original Message-----
> From: Adam [mailto:info@restoreyourtiles.com]
> Sent: Monday, May 14, 2012 11:33 AM
> To: Restoration and Maintenance
> Subject: [sccpartners] Limestone problem
>
>
>
>
>
>
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