On Thu, 21 Mar 2002, Randall Young wrote:
> > Apparently the acid doesn't take oil off the
> > floor, so get the floor really spotless before you etch.
>
> I'm curious, wouldn't lye take off oil and such much better, while still
> acting to etch the concrete a little ? I've never tried it, so I have no
> idea.
as much as richard griot's blather gets old, the concrete cleaner he sells
works pretty good. pour it on oil, get it wet, and it'll cleam most of
it. he claims it contains bacteria that eat the oil. it might be
effective enough on small spots.
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