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Unread 12-07-2011, 01:23 PM   #1
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New Tile Shower Grout Questions!!

Hey all,

I have been searching for hours on end and get varying answers or not a straight forward one.

I'm tiling a new shower stall, 12" x 12" porcelian overtop Redgard membrane.

1. What is the best grout to use for shower walls? (I prefer not to use epoxy)
I keep reading a lot of posts that people like TEC AccuColor and TEC
AccuColor XT. I've heard a lot of comments regarding TEC XT has color
blotching. Are any other products good?

2. Is it best to use a Grout additive or just seal the grout after it has cured?
I know the grout additives clame you don't need to seal anything and is
considered newer technology. There are mixed reviews. Some swear by it
others hate it. Can you recommend the products that worked best for you
and why?

3. Also, I read that for porcelain tiles I need to use a latex-modified thin set
mortar. Just wanted to verify that and any brand to choose or stay away

Thanks, Jim
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Unread 12-07-2011, 01:51 PM   #2
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Location: Boerne, Texas
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Welcome, Jim.

1. Whatever Mrs. Jim prefers. The vast majority of tile is still grouted with cementitious grouts. No reason at all not to use one in your shower.

There is no "best" grout in that category. Every manufacturer out there makes grouts of good quality and if installed per the manufacturer's instructions will work well. There are, however, lots and lots of opinions about the various grouts. When your shower is finished, you'll have one, too.

2. I personally do not recommend adding anything to a cementitious grout unless it is specifically recommended by the grout manufacturer.

Sealing the grout can aid in the maintainability of the shower, but it is not a requirement.

3. Porcelain tiles have been installed for decades before the advent of polymer-modified thinset mortars. Some tile manufacturers and some substrate manufacturers require modified mortars, some do not. Much evidence is available to support the position that Porcelain tiles can be set quite adequately using dry-set (un-modified) mortars.

My opinion; worth price charged.

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Unread 12-07-2011, 02:23 PM   #3
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Jim, TEC has a new grout called Power Grout. They say it never needs to be sealed.
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Unread 12-07-2011, 03:37 PM   #4
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I checked it out. It would be worth giving a shot but can't find where to buy it.
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