Is sealent needed with a polymer grout ( shower tile)????

Discussion in 'Shower & Bathtub Forum & Blog' started by kc567567, Mar 14, 2007.

  1. kc567567

    kc567567 New Member

    Joined:
    Nov 27, 2006
    Location:
    Ontario
    As the title asks ... is a polymer based non-sanded grout in need of a penetrating sealer ...... as the Home Depot sales guy suggested?

    KC
     
  2. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

    Joined:
    Sep 2, 2004
    Occupation:
    Retired Systems engineer for defense industry.
    Location:
    New England
    A sealer helps. Is it absolutely necessary, no. One thing people often don't realize, is that grout is not waterproof...water resistant, but not waterproof. A sealer helps when it comes time to clean things, as it resists oil and other scum that otherwise likes to adhere.
     
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  4. geniescience

    geniescience Homeowner

    Joined:
    Nov 27, 2005
    Occupation:
    ditto
    Location:
    humid summers hot, humid winters cold
    if your grout is 100% epoxy, you don't seal it.
    if your grout has a polymer additive in Portland cement grout, you can seal it.
     
  5. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

    Joined:
    Sep 2, 2004
    Occupation:
    Retired Systems engineer for defense industry.
    Location:
    New England
    Also note, most ceramic tiles will not absorb any sealer, and, if left in place to dry will cause streaks that can be difficult to remove. Follow the instructions and buff off before it dries.
     
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