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  1. #1
    Join Date
    May 2008
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    BELL POST HILL, 3215
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    Default Small Black Problem.

    Hi to Everybody, & Have A Very Merry Christmas, & a Great New Year,

    There are some Stainless Steel Pots & Pans within the family, & they have been burnt black.
    I have bought a scouring pad, 280 x 190mm. & Maroon in colour & $3. There has to be a lot of Elbow Grease used to get this Stuff off, & it does work rather well, But???.

    So my Question is, could there be a Liquid Solution of some kind to remove this Blackening of the Stainless.
    I've not been game to use anything as I would not know what I was doing.
    Regards,
    issatree.
    Have Lathe, Wood Travel.

  2. #2
    FenceFurniture's Avatar
    FenceFurniture is offline The prize lies beneath - hidden in full view
    Join Date
    Oct 2010
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    1017m up in Katoomba, NSW
    Posts
    2,453

    Default

    Lewis, I had a similar problem (but not with stainless) and I did some research which led me to putting 250ml vinegar per litre in the pot, and sufficient quantity to cover the blacked area.

    Boil for 15 minutes, and then leave it stand overnight. Quite a lot of the carbon was loosened after this and quite a lot more came off with subsequent scouring (with very fine steel wool - from the shed of course).

    From memory I repeated this another two times (certainly one at least) over a few days.

    Nothing else I tried worked, and this eventually got there.

    HTH
    Brett

    EDIT: I used floor cleaning vinegar (not that it's stronger, just cheaper)
    Regards, FenceFurniture

    COLT DRILLS GROUP BUY
    Jan-Feb 2019 Click to send me an email

  3. #3
    Join Date
    Jul 2012
    Location
    Newcastle
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    0

    Default small black problem

    Hi
    After welding stainless steel we treat the welds with Avister pasivating paste. You can probably buy it from welding supply places. It takes out the heat marks from welding with a little work with steel wool or a wire brush.It's mainly phosphoric acid and is preety bad stuff. You need to were industrial strength rubber gloves, eye protection ect. Don't breathe the fumes. We also use nitric acid.

    Merry Xmas
    Kev

  4. #4
    Join Date
    May 2002
    Location
    in the outer reaches of Sth Oz
    Age
    75
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    228

    Default

    A strong caustic soda solution works well and you can clean the drains after when you pour it away Just don't use ali pans
    Pete
    What this country needs are more unemployed politicians.
    Edward Langley, Artist (1928-1995)

  5. #5
    Join Date
    Dec 2005
    Location
    Canberra
    Posts
    723

    Default

    I vote hot caustic solution too!

  6. #6
    Join Date
    Aug 2005
    Location
    Queensland
    Posts
    613

    Default

    Bought some of this stuff from the garden expo in Nambour a couple of years ago.

    Works like a charm, very easy to do and for once, it works. No affiliation just a user. Mainly use it to clean the glass shower screens - only need to do it a few times a year.

    Safe and Clean – 750g Household Tub | Amaze Products

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