On Thu, Mar 29, 2018 at 1:28 PM Fred Hueston (via sccpartners list) <sccpartners@stoneandtilepros.simplelists.com> wrote:
Mike
It is a rust remover but doesnt always work very well in wet areas, but you can give it a try
Stone Inspection and Troubleshooting Seminar June 11-14, Melbourne FLtune into my new radio show at www.blogtalkradio.com/drfred
-----Original Message-----
From: Mike Marsoun <outerislandstonecare@gmail.com>
To: sccpartners <sccpartners@stoneandtilepros.simplelists.com>
Sent: Thu, Mar 29, 2018 1:22 pm
Subject: Re: Basalt
Hi Fred. I thought the RSR 2000 was the remover. Why not just use this to remove the stain? Maybe the price? That stuff is not cheap!
Sent from my iPhoneBest way to test for Iron is to use Alpha RSR 2000. Place a small amount of the rsr on the stain..If it turns purple in a min or two it is a positive test for iron. If it tests positive than remove with iron out of some other iron removing chemical in a poultice
On Wed, Jan 31, 2018 at 2:41 PM, Stuart Rosen <mail@stoneshine.com> wrote:
I found this-"Black is pyroxene augite, orange is olivine or more precisely what is left of it. Orange patches are former olivine crystals that are now composed of a mixture of silicates and iron oxides which is known as iddingsite. Olivine is a common mineral in many basaltic rocks."
I think when olivine oxidizes you get orange patches-not quite what you have but a good indication its probably iron oxidizing-Fred?
On Wed, Jan 31, 2018 at 11:26 AM, Mike Marsoun <outerislandstonecare@gmail.com> wrote:
Sent from my iPhoneHi fellas. Has anyone seen this problem before? Not sure if it was like this prior to installation. It is in random places which makes it seem so and it is not wicking into the grout. 99% sure it is rust but I might do a tannin test. Whatever the case I would like to remove it if possible. It seems very deep set and like it is wicking in thru the edges so it might be through the thickness of the stone. These tiles are small, maybe 3x6".
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