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  1. 13th April 2023, 07:08 PM #1
    smidsy
    smidsy is offline 21 with 26 years experience
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    Default Removing rust from concrete

    I have rust strains on concrete from where my fire drum (truck brake drums stacked 3 high) has been sitting.

    This is something I've never had to do before so I'm assuming a scrubbing brush and chemicals.
    Will CLR (I've never used the stuff) do the trick or do I need acid - if I need acid what ratio do I dilute it to?
    Is there anything else available other than those two?
    Cheers
    Paul
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  2. 13th April 2023, 07:47 PM #2
    jack620
    jack620 is offline GOLD MEMBER
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    Nov 2007
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    melbourne australia
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    Default

    This stuff should do the trick.

    Just a moment...
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  3. 13th April 2023, 09:46 PM #3
    China
    China is offline China
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    Dec 2005
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    South Australia
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    Default

    I have used the above mentioned product to successfully remove rust stains from concrete driveway
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  4. 14th April 2023, 04:06 AM #4
    Beardy
    Beardy is offline GOLD MEMBER
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    Apr 2018
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    Nsw
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    Default

    Oxalic Acid it the primary product you are looking for which is the key ingredient in the Diggers product recomended by Jack620
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