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    STONECOTTO's Avatar
    STONECOTTO Posts: 25, Reputation: 1
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    #1

    Nov 8, 2007, 08:34 PM
    Plaster walls
    Hello what is the best way to cover plaster wall holes about 3" big
    Clough's Avatar
    Clough Posts: 26,677, Reputation: 1649
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    #2

    Nov 8, 2007, 08:38 PM
    Can you see wood lath where the plaster was?
    STONECOTTO's Avatar
    STONECOTTO Posts: 25, Reputation: 1
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    #3

    Nov 9, 2007, 10:50 AM
    Most of the holes are in the ceiling.I rewired my house and I had to do a lot holes to run the wired. The ceiling is halo. Tank you
    Rover88's Avatar
    Rover88 Posts: 68, Reputation: 14
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    #4

    Nov 11, 2007, 08:36 AM
    I just went through this. I cut and fit pieces of lathe strip into the holes, then used a quick-setting patching plaster (Web Coat?). First plaster application was a rough fill; after this dried I went back for a final coat. Some sanding may be necessary, depending upon how well you finish the final plaster application with the trowel.
    KBC's Avatar
    KBC Posts: 2,550, Reputation: 487
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    #5

    Nov 13, 2007, 05:51 AM
    In addition to the above comment, try wetting the old plaster before you apply the new topping, this allows the old to retain a little more moisture during drying time, lessening the cracking.

    Ken
    STONECOTTO's Avatar
    STONECOTTO Posts: 25, Reputation: 1
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    #6

    Nov 18, 2007, 09:48 AM
    Quote Originally Posted by Rover88
    I just went through this. I cut and fit pieces of lathe strip into the holes, then used a quick-setting patching plaster (Web Coat?). First plaster application was a rough fill; after this dried I went back for a final coat. Some sanding may be necessary, depending upon how well you finish the final plaster application with the trowel.
    What is web coat
    Rover88's Avatar
    Rover88 Posts: 68, Reputation: 14
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    #7

    Nov 18, 2007, 10:14 AM
    Web Coat is a fast setting (15-20 minute working time) plaster. I bought it from my local paint store, but I see that Lowe's and Depot sell other brand names of the same type of thing. Mix with water, and it's kind of like drywall joint compound, but sets faster and harder.
    TerryB's Avatar
    TerryB Posts: 53, Reputation: 3
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    #8

    Nov 21, 2007, 10:08 PM
    Sheetrock 20 is another. Be careful when wetting the old plaster. Some the old lime based plasters have a tendency to self-destruct when they get wet.
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