Shelf life of thinset and grout?

shw001June 1, 2012

I have thinset and grout left over from a shower install three years ago. Can Is still use these materials to repair a few tiles on the Shower floor? These are ceramic tiles.

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I'd toss them.

They'll undergo a bit of hydration while sitting on the shelf, it'll reduce the quality of the product should you choose to use it. Weaker bond, etc.

Spend the $9 for a small box of fresh grout and the $15 for a bag of modified thinset. Easy choice.

    Bookmark   June 1, 2012 at 4:02PM
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Thanks. I would hate to do a couple hours work and have it fail again, so will follow your advice. It was tempting, since I have so much left.

    Bookmark   June 1, 2012 at 7:23PM
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As cheap as it is, get rid of it. About a year is the maximum in a climate-controlled environment. Laticrete might be a bit better as their stuff is vacuum sealed.

    Bookmark   June 2, 2012 at 5:12PM
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Even Vacuum sealed. The shelf life is 6 months from the date of manufacture, as opposed to the date you buy it.

    Bookmark   June 2, 2012 at 6:55PM
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Thanks. I get the message.
Would this rule of thumb also apply to general mortar used for brick work? such as Type N mortar? or concrete mix in paper bags?

    Bookmark   June 3, 2012 at 10:29PM
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