T Keltner

02:26PM | 09/22/03
Member Since: 09/21/03
1 lifetime posts
Help !

I just had a new tiled walk-in shower installed by a local contractor with antique white grout. The tile was set on thinset with a Denshield tile backer. We applied Stone Tech Professional Heavy Duty Impregnator-Pro grout sealer a couple of days after grouting and allowed about two days for the sealer to dry. After using the shower for a couple of days, there were several places (on the floor and towards the bottom of the walls) where the grout turned a mopwater gray color. We did not use the shower for two weeks and most of the original color returned. I guess it dryed out. We then reapplied the sealer. After a day or two of using the shower (5 or 6 times) the discoloration is back and seems to be getting worse.

Can anybody tell me what is going on here and what can I do to stop it?


04:39PM | 09/22/03
Member Since: 06/06/03
1250 lifetime posts
I'd first hit up your contractor on this problem. Usually they should come through with some's part of the price of using them....good luck.

Graham Flooring

04:26AM | 09/23/03
I suggested on the other forum that she use the phospheric acid to remove all the sealers and use a grout colorant. ( the discoloration is from the grout not cureing enough before the sealer was applied.)



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