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Old 12-05-2017, 05:51 PM   #16
stu rosen
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Join Date: Feb 2009
Location: New Jersey
Posts: 138
Yes-There is an ongoing debate about sealing shower stalls. Lets look at the performance of an impregnating sealer. "To temporarily inhibit the intrusion of staining agents from the surface of the stone"
Thats it-pretty much. If you have a sound installation and have specified stone that works well in a wet environment do you need a sealer?
Anyway you can try the iron out poultice or use ammonium thyioglycolate which is quite good at removing oxidation. It sells under the name of RSR2000 or Margel. Read directions and understand unless the water is mitigated the oxidation may return with vengeance.
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Stu
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