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Old 10-17-2005, 04:59 PM   #1
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grout problem


anyone ever use Mapei premixed grout/adhesive. I used it last year for a tiling job and it's starting to soften and fall out near the bottom of the shower. It was the first time i ever used the premixed. I'm gonna remove it and use unmixed grout. Just wondering if anybody might know anything about this.

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Old 10-17-2005, 05:01 PM   #2
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grout problem


Never use anything labeled pre-mixed in a shower/wet environment. It will always soften up no matter which brand.

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Old 10-17-2005, 05:09 PM   #3
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grout problem


Quote:
Originally Posted by rspainhower
Never use anything labeled pre-mixed in a shower/wet environment. It will always soften up no matter which brand.
why is that?? I just want to know because I'm gonna call the tile guy that recommended it to me. I went against my better judgement when i bought it. thanks
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Old 10-17-2005, 05:30 PM   #4
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The premixed stuff is not made with portland cement. It will loosen up and feel like toothpaste when it comes in contact with moisture. The proper product to use is thin-set and grout made with portland cement that is bought dry and mixed with water.
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