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A client had an accident with cooking oil in their alfresco area. They have moved out but there is a big stain left on the exposed aggregate concrete. it has been there for 6 months now and I need a solution to remove it. I have a pressure washer and tried that a couple of months ago along with some concrete cleaner. Does anyone know a solution here? I'm tempted to just put more oil around the whole area to make it even!
Hi @Ready2go
Smart thinking about adding more oil to try blend the stain, But that carries some risks risks of a further blotchy finish. Test that theory in a less noticable area. or add a little oil to stain and feather it out lighter and lighter,in a small radius.
But first lets try one more trick no promises though. Car engine degresser is what i used to use on drive way oil stains brushed on to stain and scrubbed with pressure washer clean up next day.
Exposed aggregate you mean like pebble crete? If so sanding back some concrete is out as on polished concrete. So whats left ummmm
try some bleach in the centre of the stain only undiluted and leave it see if it helps lighten that area, This can lead to and over clean spot just as bad as a dark spot so the whole area will need same treatment.
If the aggregate is like pebble crete rough textured surface consider mixing cement (No sand) into a thin paste and recovering the patio area fully and lightly spraying water on aggregate to re expose it with a fresh uniform concrete under color. This will need sealing again.
Good luck on your problem solving I hope one of these helps.
Hello @Ready2go
I would also like to suggest using CLR 750ml Grease & Oil Remover. It has a powerful industrial strength formula that cuts through baked on foods, grease, oil, grime & tar stains. Please make sure to follow the instructions at the back of the container for maximum effectivity.
Please make sure to wear personal protection such as gloves, goggles and a mask when using the CLR.
If you have any other questions we can help with, please let us know.
Eric
cheers for the help folks!
I'll give the CLR a shot and do some before and after shots for you
that CLR has to be one of the few products that actually works as well as advertised. I'm a new convert!
thanks everyone! perfect product @EricL
Fantastic.
Many thanks for coming back and sharing results @Ready2go. I'm sure visitors to this discussion in the future will really appreciate it.
Jason
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