how to clean aluminum siding stains off of brick?

bruce Posted By bruce, Oct 8, 2007 at 11:41 PM

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  1. bruce

    bruce
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    Nov 20, 2005
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    does any one know? i tried power washer, acid, vinegar, and something a paint store sold me with no luck, there has to be a way
     
  2. senorFrog

    senorFrog
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    Not sure, but I'd try posting over at oldhousejournal.com or oldhouseweb.com. Either site usually pretty good advice re restoration.
     
  3. Hogwildz

    Hogwildz
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    Did you tri Tri Sodium Phosphate?
    You may have to use muriatic acid.
     
  4. bruce

    bruce
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    Nov 20, 2005
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    yes i tried acid, but no tsp, just a tsp substatute they sold me called MEX
     
  5. Corey

    Corey
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    What exactly from the siding made the stain? I've never really known aluminum metal itself to leave a stain - at least not like a rust trail from steel. Is the paint on the siding starting to chalk up and bleed off or something else?
     
  6. bruce

    bruce
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    Nov 20, 2005
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    yes the paint has left chalk stains all down the brick
     
  7. Corey

    Corey
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    That is going to be a tough one. I'd say the first thing to do would be to eliminate the source of the problem - either repaint, replace or seal the siding. Once the source is stopped, Dutchboy recommends:

    "Brick areas that are stained by “chalk run-down” should be scrubbed with a stiff brush and detergent. Professional cleaning may be required to remove this staining."

    http://dutchboy.com/projects/troubleshooting/stains-chalk-mildew/

    Also note that it may weather away on it's own once the source of the problem is stopped.

    Corey
     
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