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#4781469 - 06/08/18 04:36 PM Removing HDEO oil from concrete
car51 Online   content


Registered: 03/12/15
Posts: 10251
Loc: Southwest PA
My coworker spilled or some HDEO oil spilled in his bay. "Purple Power" didnt remove all of it.

Thank You in advance
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#4781476 - 06/08/18 04:43 PM Re: Removing HDEO oil from concrete [Re: car51]
VeryNoisyPoet Offline


Registered: 12/16/17
Posts: 290
Loc: Massachusetts
Hit it with Purple Power again and let it soak for several minutes. Agitate it with a stiff bristle scrub brush every few minutes, then rinse with a pressure washer using a 15 degree narrow fan nozzle. Probably will take multiple passes. Oil stains are tenacious and he may just have to live with it for a while.
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#4781477 - 06/08/18 04:43 PM Re: Removing HDEO oil from concrete [Re: car51]
Delta Offline


Registered: 04/20/14
Posts: 1145
Loc: South Central PA
Was this on sealed concrete? If not, it might always be there honestly. IF (that's a big IF) I was to tackle it I might go with a muriatic acid wash, but if you don't know what you're doing it can go south quickly. Benjamin Moore makes a product for cleaning concrete of oils and greases. I've used the old version for oil spots in the asphalt driveway (because the S10 likes to mark its territory) with success. Not sure about porous concrete. If you were closer I have a half gallon I'd give ya.

http://store.southernpaintandsupply.com/corotech-oil-grease-emulsifier-gallon/
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#4781478 - 06/08/18 04:45 PM Re: Removing HDEO oil from concrete [Re: car51]
sleddriver Offline


Registered: 02/06/10
Posts: 4599
Loc: Central Texas
Cheap cat litter. Grind it into the spill with a brick until it's powder, then sweep up.
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#4781482 - 06/08/18 04:52 PM Re: Removing HDEO oil from concrete [Re: car51]
car51 Online   content


Registered: 03/12/15
Posts: 10251
Loc: Southwest PA
Delta: it or floor has a coating on it. I'll help him with the purple power again. Kitty litter did nothing but absorb the oil. Diesel oil is black and nasty nasty
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#4781487 - 06/08/18 04:58 PM Re: Removing HDEO oil from concrete [Re: car51]
pandus13 Online   content


Registered: 08/12/11
Posts: 3181
Loc: Chicago,IL,USA
Originally Posted By: car51
Delta: it or floor has a coating on it. I'll help him with the purple power again. Kitty litter did nothing but absorb the oil. Diesel oil is black and nasty nasty

powdered dishwasher detergent (suggested by folks in another clean the concrete thread)
Hope it helps.
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#4781490 - 06/08/18 05:00 PM Re: Removing HDEO oil from concrete [Re: car51]
E365 Online   content


Registered: 12/16/07
Posts: 448
Loc: USA
Iíve blasted oil stains with brake cleaner and it seems to help. Probably not a great idea on blacktop though? Iíd guess safer on concrete.
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#4781510 - 06/08/18 05:20 PM Re: Removing HDEO oil from concrete [Re: car51]
2oldtommy Offline


Registered: 10/29/06
Posts: 873
Loc: Ohio
Dawn dishwasher detergent. It works!

Oldtommy

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#4781547 - 06/08/18 06:09 PM Re: Removing HDEO oil from concrete [Re: car51]
PimTac Online   content


Registered: 03/04/17
Posts: 4236
Loc: Soviet State of Washington
Trisodium Phosphate powder, if they still sell it. Use with caution.
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#4781549 - 06/08/18 06:13 PM Re: Removing HDEO oil from concrete [Re: car51]
AVB Offline


Registered: 05/20/12
Posts: 1282
Loc: Georgia
I am thinking lye, but I don't know what, if anything, it will do to the floor.

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#4781602 - 06/08/18 06:53 PM Re: Removing HDEO oil from concrete [Re: car51]
Nukeman7 Offline


Registered: 09/23/06
Posts: 237
Loc: Virginia, USA
This just plain works on oil spills like magic:

https://www.pour-n-restore.com/

It is available at ACE Hardware stores and on Amazon.

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#4781685 - 06/08/18 08:25 PM Re: Removing HDEO oil from concrete [Re: car51]
SubieRubyRoo Offline


Registered: 05/14/12
Posts: 1125
Loc: Winchester, Indiana
Tommy's right... use noisypoet's method, but subsitute Dawn dish soap instead of purple power. Scrub it in, and let it sit for 30 minutes. Then hose it off.

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