Dayron,

I had a similar situation that I resolved a couple of months ago. The difference is that the installation was completed in 2009 and the customer just lived with it. As you can see in the before picture, a penetrating sealer was applied to the grout joints and it bled into the stone. After testing a couple of removal methods, I simply applied an alkaline cleaner, let it dwell for 15 minutes, scrubbed with a tampico brush on a 175, & extracted with a spinner/truck mount.

Blain Haeg
Gold Standard Floor Care
512.257.3070 office
512.750.1242 cell
blain@goldstandardfloorcare.com
www.GoldStandardFloorCare.com

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On Sat, May 9, 2015 at 1:32 PM, Dayron <dayron.padilla13@gmail.com> wrote:

Gang, this developer went the cheap route and hired the competition to clean and seal limestone. This is what they did

1) install and sealed with 511 enhance and seal
2) applied grout ( cementiuos) and immediately, added second coat of 511 enhance and seal
3) next day moisture all on grout lines so they decided to use an alkaline stripper to no avail

I told developer that this may be a case for Mr. Jack Hammer. Have you guys ever corrected a situation like this ?

Thanks guys very high end would work wonders if I can find solution

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