- Bob - wrote in :

In a typical tiled shower installation, is the grout waterproof so
that it keeps water out of the lower layers?

Is sealing necessary to make it waterproof? Or does sealing just keep
the dirt out of the grout and it is just as waterproof sealed or not?

Thanks,



Again, I swear by this stuff. What convinced me is the guy at the tile
store. I had a tiled shower in one of the HUD Wrecks I bought. The grout
was all faded bad. They were small tiles maybe 2"x2". I brought in a
block in tact with grout that came off the lower wall.

Guy opens a bottle and puts it on the grout. It brought the color back
like magic. Then on the edges you could see the stuff changing the grout
all the way through it's depth. Penetration, not coating.

http://www.custombuildingproducts.co...er=arc&lang=en
-or-
http://tinyurl.com/39nb85u


Before and after pic:

http://oi51.tinypic.com/21mx277.jpg