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Cleaning concrete off bricks?

  • 24-06-2013 12:43AM
    #1
    thehamo
    Registered Users, Registered Users 2 Posts: 2,049 ✭✭✭


    Hi all,

    Just a quick one. Recently built a bbq out the back, but in my attempt to keep costs down I got a cheap cream brick. Problem is I used grey mortar on the joints, and now I have filthy bricks! Anyone know the best way to clean it off or should i just try and paint over it?


Comments

  • #2
    mrcheez
    Registered Users, Registered Users 2 Posts: 14,875 ✭✭✭✭mrcheez


    I've been meaning to do this on my own garden wall.

    You have a few options...

    1) You can try to chisel off the spatters if they are still "powdery" enough, but risk damaging the brick.
    2) Better yet, use an acid wash, in a 10 part water to 1 part acid solution. But careful not to use too much or you risk staining the brick.
    3) Leave it to weather away.

    2 is probably best option, but most risky.


  • #3
    BobLeeSwagger
    Registered Users, Registered Users 2 Posts: 174 ✭✭BobLeeSwagger


    Brick acid is your best bet. Local hardware should have some for under €10 for 1 litre size. As mrcheez has said, dilute is well and make sure you wash it down too. Careful of the fume from it and wear gloves too!


  • #4
    paddy147
    Banned (with Prison Access) Posts: 15,824 ✭✭✭✭paddy147


    A small angle grinder,cordless drill or mains powered drill and a wire brush attachment.


    Oh and a steady hand.


    Dead easy for removing mortar blobs/splatters off of brick.

    Simples.


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