sure-klean has a product that will break down silicon, I would do a couple applications of this, thoroughly rinse the floor and let it dry for a couple days and see what happens. tell the contractor it may work or may not but you still need to get paid for your time and materials. I did it on a couple jobs and was very successful.


Sent on a Sprint Samsung Galaxy S® 5


-------- Original message --------
From: Dayron
Date:05/09/2015 2:32 PM (GMT-05:00)
To: Scc Technical
Subject: Limestone yuck

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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