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Re: Cleaning decades old oil stains off concrete floor [Re: Malo83] #1959155
07/19/10 08:53 PM
07/19/10 08:53 PM
Joined: Aug 2005
Posts: 5
waxahachie, tx
ranger52 Offline
ranger52  Offline
Joined: Aug 2005
Posts: 5
waxahachie, tx
Try applying some lacquer thinner on the oil spot. Immediately after the lacquer thinner, put some oil dry or kitty litter on the spots to absorb the lacquer thinner and the dissolved oil. Leave it a day and sweep it up later.

Re: Cleaning decades old oil stains off concrete floor [Re: ranger52] #1960441
07/21/10 04:30 AM
07/21/10 04:30 AM
Joined: Jul 2010
Posts: 156
San Jose, California, United S...
John_Corey Offline
John_Corey  Offline
Joined: Jul 2010
Posts: 156
San Jose, California, United S...
Hi ranger,

I wonder if this procedure might work on oil-stained concrete. My brother in-law parked his MKII in my driveway and, as it befits a vehicle of British pedigree, it left a considerable puddle of oil behind. Unfortunately, the oil has already been absorbed into my brand-new driveway, and all the scrubbing with soapy water did not help much.

Cheers,
-J

Originally Posted By: ranger52
Try applying some lacquer thinner on the oil spot. Immediately after the lacquer thinner, put some oil dry or kitty litter on the spots to absorb the lacquer thinner and the dissolved oil. Leave it a day and sweep it up later.

Re: Cleaning decades old oil stains off concrete floor [Re: John_Corey] #1960993
07/21/10 02:28 PM
07/21/10 02:28 PM
Joined: Dec 2009
Posts: 5,037
Tn.
CourierDriver Offline
CourierDriver  Offline
Joined: Dec 2009
Posts: 5,037
Tn.
we use to use tide with bleach powder , worked like a charm


About 610,000 people die of heart disease in the USA every year/that's 1 in every 4 deaths. Thats 1,670 a day,,did someone say guns are dangerous..right...
Re: Cleaning decades old oil stains off concrete floor [Re: CourierDriver] #1962009
07/22/10 10:54 AM
07/22/10 10:54 AM
Joined: Aug 2005
Posts: 5
waxahachie, tx
ranger52 Offline
ranger52  Offline
Joined: Aug 2005
Posts: 5
waxahachie, tx
In my experience, the lacquer thinner and litter will remove oil stains from concrete.

Re: Cleaning decades old oil stains off concrete floor [Re: CourierDriver] #1962195
07/22/10 01:28 PM
07/22/10 01:28 PM
Joined: Aug 2005
Posts: 5
waxahachie, tx
ranger52 Offline
ranger52  Offline
Joined: Aug 2005
Posts: 5
waxahachie, tx
In my experience, the lacquer thinner and litter will remove oil stains from concrete. You will notice the place at first. However, I do not remember my attention being called to those places after a while.

Re: Cleaning decades old oil stains off concrete floor [Re: stuntboy79] #1968947
07/28/10 11:41 PM
07/28/10 11:41 PM
Joined: Mar 2010
Posts: 174
NSW, Australia
Craig750 Offline
Craig750  Offline
Joined: Mar 2010
Posts: 174
NSW, Australia
I use standard petroleum engine degreaser first.

Then I mix in a slurry of clothes washing powder and water. You want the slurry to stay in place and hold the water

Then a stiff brush and scrub it in for a few minutes and then let it soak for a few hours to a couple of days. Keeping the area wet.

After a good soaking I then hose it down. You can see the stains when it is wet but after drying it is hard to see them.

WARNING WILL ROBINSON: I AM NOT A CHEMICAL ENGINEER AND DO NOT KNOW IF MIXING DEGREASER AND LAUNDRY SOAP POWDER IS DANGEROUS.

Re: Cleaning decades old oil stains off concrete floor [Re: stuntboy79] #1981162
08/09/10 08:42 PM
08/09/10 08:42 PM
Joined: Aug 2008
Posts: 3,681
ks, wichita
morris Offline
morris  Offline
Joined: Aug 2008
Posts: 3,681
ks, wichita
go somewhere where they are building a new road, from the ground up, not just repaving, ask the boss if he knows where you can find fly ash. its a gray power. put it on the floor sweep back and forth, pick up dump out, and add some to the floor let it set and sweep some more.

Re: Cleaning decades old oil stains off concrete floor [Re: stuntboy79] #1981167
08/09/10 08:50 PM
08/09/10 08:50 PM
Joined: Aug 2008
Posts: 3,681
ks, wichita
morris Offline
morris  Offline
Joined: Aug 2008
Posts: 3,681
ks, wichita
to, papa bear, in the late 60s i worked with an old mech. he used battery acid to clean old pot metal carbs that sat outside. but you had to have running water to rinse the acid off at just the right time. BUT it doesnt work on aluminum

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