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Thread: Removing oil/grease stain from concrete driveway?

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    Removing oil/grease stain from concrete driveway?

    Was working on an old bike today and the fuel line split. Petrol ran down the bike and onto the concrete, carrying with it a lot of old built up oil and grease from the bike. Stain is about 30cm across.

    What are your tips and tricks for removing stains on concrete?

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    Member filbert's Avatar
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    Cement dust asap to soak up the oil then brush off.

    If it's had time to soak in then give some old school caustic oven cleaner a go.

    Don't go giving yourself chemical burns or I'll feel bad, use PPE and do a risk assessment etc 🖒

    Degreasers can soak in and leave their own residue which is lighter than the stain but you'll know it's there, don't use acid cleaners as they can react badly with the cement and even bubble and pop destroying the surface.
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    caustic soda and boiling water - apply dry caustic to stain and the boiling water from as far away as you can get
    the chemical reaction is exothermic and the caustic will break down oils and fats - unfortunately that includes your flesh so wear a face shield and gloves.

    actually - its fucking dangerous but it does work!
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    CLR oil stain shit from bunnings or even $2 can of degreaser from supershit auto.
    "Some people are like clouds. When they disappear it's a beautiful day"

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    Quote Originally Posted by Halo_2 View Post
    CLR oil stain shit from bunnings or even $2 can of degreaser from supershit auto.
    I was looking into that before posting this question but have read some reviews online that says it leaves its own stain?

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    Quote Originally Posted by Speed Dealer View Post
    I was looking into that before posting this question but have read some reviews online that says it leaves its own stain?
    Haven't used just seen it at Bunnings, could start with the $2 can
    "Some people are like clouds. When they disappear it's a beautiful day"

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    Quote Originally Posted by Halo_2 View Post
    Haven't used just seen it at Bunnings, could start with the $2 can
    Yeh Repco $2 aerosol degreaser,,,works for mine.. leaves a waxy type of water detterent behind...Hot water to wash off...then soapy hot water rinse...(Dishwashing liquid n water...)

    'Kitty litter' if no cement dust ----is ok too.... leave on for a bit.... brush off..( reuse as required. next time..)
    " Imagination is the seed of life..."
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    Fuel/petesorb if you can get it.
    Keep up to date! - https://www.emergency.wa.gov.au/
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    Member roomandu's Avatar
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    Last one I had on a driveway at home was dowsed liberally with Stupidcheap degreaser, covered very liberally with bickies sand and left over a few weeks of stinking hot days. Eventually swept up and dropped into the bin.
    Epic failure was that I had a super clean patch on an otherwise not so clean driveway lol
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    The best degreasers these days are the water based ones. The caustic sooda suggestions will work, but the best product is Kenco from Bunnings - it's an alkaline salt based formula that works even better than custic soda and won't leave residues
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    Jackhammer..sure fire way to remove that stain 100%
    Smoke me a kipper...I'll be home in time for breakfast
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    'Specially since it's been there the better part of 8 months..
    Quote Originally Posted by Gippo
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    Quote Originally Posted by BusaSteve View Post
    Jackhammer..sure fire way to remove that stain 100%
    beaten...... Demo Saw...Skid steer.....tipper.
    " Imagination is the seed of life..."

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    I sealed my pavers and it tends to keep stains from sinking in...works the same for concrete...albeit you need to splash it on heavily due to the porosity
    Smoke me a kipper...I'll be home in time for breakfast

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    I spread organic butter on my oil stains everyday so they stay fresh longer.
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    Slight segue but will any of the above work for cum stains on curtains?
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    Noted. We'll check back on that one in three years
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    Quote Originally Posted by Para045 View Post
    Slight segue but will any of the above work for cum stains on curtains?
    Wot, like "Beef Curtains?"
    Quote Originally Posted by Gippo
    cuntoxly

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    i doubt CLR would work cause its for calcium lime and rust but a good higher flash solvent degreaser might? some of those really greasy low flash cheap degreaser dont dry and would probably just disperse it more into the slab. then hit it quick with a real good high pressure washer.

    i've found CLR to be a bit namby pamby even neat on just about anything really....
    I cant help it if your perceptions don't match my reality



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    Member BusaSteve's Avatar
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    Quote Originally Posted by Para045 View Post
    Slight segue but will any of the above work for cum stains on curtains?
    scissors mate! hey will be posting a ride soon you likely to prefer working?
    Smoke me a kipper...I'll be home in time for breakfast

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    Member Para045's Avatar
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    Quote Originally Posted by BusaSteve View Post
    scissors mate! hey will be posting a ride soon you likely to prefer working?
    I'm always up for a ride, just depends on shifts
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    Quote Originally Posted by Phildo View Post
    Noted. We'll check back on that one in three years
    Quote Originally Posted by filbert View Post
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