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    masmith4833's Avatar
    masmith4833 Posts: 2, Reputation: 1
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    #1

    May 6, 2012, 10:14 AM
    Can you put thin set over carpet mastic on cement
    I have removed glued down carpet from cement, can I install the thin set over the mastic?
    ballengerb1's Avatar
    ballengerb1 Posts: 27,378, Reputation: 2280
    Home Repair & Remodeling Expert
    		  
    #2

    May 6, 2012, 10:57 AM
    No, you must scrap it off first. Mastic never hardens fully but thinset does and needs a sound base. I used a specail tool, Spider Scraper, that attaches to my reciprocating saw to speed it up. Spyder Products | Tools You'll Love For The Jobs You Don't
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