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    tara29's Avatar
    tara29 Posts: 1, Reputation: 1
    New Member
     
    #1

    Dec 2, 2007, 12:29 PM
    Foundation growing white chalky stuff
    My Foundation in the basement is growing white chalky like stuff on it down by the floor this is not a room we really use just for storage. Is this something I should be worried about?

    Thanks
    Tara
    KBC's Avatar
    KBC Posts: 2,550, Reputation: 487
    Ultra Member
     
    #2

    Dec 3, 2007, 05:08 AM
    Sounds like calcium deposits from moisture.

    Prepping,priming,and painting with UGL drylok paint would take care of it.

    Ken
    KISS's Avatar
    KISS Posts: 12,510, Reputation: 839
    Uber Member
     
    #3

    Dec 3, 2007, 10:07 AM
    Here is another link (effervescence):

    Removing Effervescence on the Basement Walls Home Improvement Questions

    The stuff can me removed with muratic acid or a dry powder that Dryloc sells. I've read elsewhere that after the etch, use TSP (Tri-Sodium Phospate) to remove traces of the acid.

    Proper surface preparation is essential for painting concrete. Wear the proper personal protective equipment.

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