Any ideas how to remove cooking oil stains from concrete countertops?
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Replace it.
We had this problem with a concrete floor. about 1,500 sf with a wax finish and oil stain on the kitchen and dining room floor. Had to strip and refinish the entire floor a year after the folks moved in. Expensive and smelly. Somehow I didn't have to do the work or pay for it because I had applied the finish called for in the specs in accordance with the floor stain installation manual.
I believe they scrubbed the whole thing with numerous applications of lacquer thinner and stripper and then came back with a urethane sealer.
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"You cannot work hard enough to make up for a sloppy estimate."
I was wondering if maybe those "poultices" made to absorb oil stains from granite countertops might work. Maybe ask someone who does granite and try it?
is oiling the entire countertop not an option... ?
p
Snoofy
I don't know for sure how it would work for concrete, but I have used something called "Whiting" to remove oil stains from wood. Specifically, oil from gunstocks before refinishing them. It took a few applications but was very effective. It is a powder and I mixed it with acetone and applied it to the wood. After a couple of hours I would brush it away and let it sit over night. If the stain comes back I would repeat the process.
I get whiting online from Brownell's, a gunsmithing supply company.
http://www.brownells.com/aspx/NS/store/ProductDetail.aspx?p=1133&title=OLD+FASHIONED+WHITING
As interior designers and real estate agents would say: "It's a living finish and will develop it's own unique characteristics and charm as it ages."