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Sealing Concrete

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  1. #1
    Apprentice (new member)
    Join Date
    Aug 2007
    Perth WA

    Default Sealing Concrete


    I am tiling a floor 55m2 of 450x450 porcelain the concrete has been down for 3 months and i am using Davco Powder Mastic do i need to seal the concrete with anything if so what do i use and how do i apply it to the concrete?


  2. #2
    Senior Member
    Join Date
    May 2007
    Cronulla, NSW


    Hi, I have just finished my first floor tiling effort with 400 x 400 polished porcelain tiles. As these are bloody expensive I followed all the instructions to a 'T' using davco flex. They recommend using a sealer so I got their brand from Bunnies in the tiling area. Not much to it, looks just like watered down PVA glue which was rollered on and only takes 20 minutes to go off - don't know what it does or if it works but better to be safe than sorry if you are a newbie. It was also suggested not to leave it down too long before tiling over it to prevent dust and dirt contaminating the finish. Good luck, Ron

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