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Waterproofing concrete block wall, no render

  • 26-01-2025 02:55PM
    #1
    geographica
    Registered Users, Registered Users 2 Posts: 1,411 ✭✭✭


    is there a product that waterproofs concrete blocks that can be applied BEFORE weathershield paint? Or is the weathershield a decent enough product to protect?



Comments

  • #2
    greasepalm
    Registered Users, Registered Users 2 Posts: 6,163 ✭✭✭greasepalm


    I have used both but not together .

    Thompsons Water Seal Clear 5Ltr to seal absorment brickwork.

    Weathershield ad painting lighthouses is suppost to be good for exposed places.



  • #3
    black & white
    Registered Users, Registered Users 2 Posts: 1,449 ✭✭✭black & white


    I’ve used Thompson’s on a flat concrete garage roof and it lasts about 5 years before needing to be done again. It’s an excellent product.



  • #4
    geographica
    Registered Users, Registered Users 2 Posts: 1,411 ✭✭✭geographica


    thanks, but I’m looking for a waterproofer that can be overpainted with a coloured weathershield


    or maybe a couple of coats weathershield paint is enough (it’s a shed using blocks on the lower half ) to make it less porous



  • #5
    standardg60
    Registered Users, Registered Users 2 Posts: 6,162 ✭✭✭standardg60


    I always use Dulux stabilising primer, expensive but worth it.



  • #6
    geographica
    Registered Users, Registered Users 2 Posts: 1,411 ✭✭✭geographica


    wonder if this would work the same as I have 5litres in the shed? - Everbuild 406 Stabilising Solution



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  • #7
    Anderson11
    Registered Users, Registered Users 2 Posts: 22 ✭Anderson11


    Hi, I went to Carbon Paint Centre in finglas they recommended Murfill waterproof to me with a recommended primer, came out perfect



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