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Message
stubborn concrete stains
Posted on 8/11/19 at 9:51 pm
Posted on 8/11/19 at 9:51 pm
Today I pressure washed driveway. The surface cleaner was a joy to use, and removing 20 years of grime was satisfying to say the least (new to us house). But there are three areas about four feet in circumference that didn't even budge. Before I go directly to muratic acid, anything else I can try? I have a bottle of eagle one etching mag wheel cleaner, Clorox and simple green. Will any of these work?
(Oops, thought I was on the home/garden board, mods feel free to move as you see fit.)
(Oops, thought I was on the home/garden board, mods feel free to move as you see fit.)
This post was edited on 8/11/19 at 9:53 pm
3
Posted on 8/11/19 at 9:55 pm to Cajun367
What does it look like? Think it could be oil/grease?
Posted on 8/11/19 at 11:15 pm to bbvdd
yeah, more than likely that's the culprit. I'll take a better look tomorrow.
Posted on 8/12/19 at 12:28 am to Cajun367
Why not use drysweep/cat litter? That etching wheel cleaner is some serious shite though. I've never tried it on concrete.
Posted on 8/12/19 at 5:05 am to Cajun367
Try putting some mutator acid on it for ten minutes or so, then pressure wash. You can get the acid in a gallon jug in the HD/ Lowe’s painting section.
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