Cleaning concrete


Old 05-30-18, 09:53 PM
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Join Date: Nov 2012
Location: usa
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Cleaning concrete

What chemicals work best to remove grafiti off concrete before pressure washing ?
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Old 05-30-18, 10:31 PM
Join Date: May 2018
Location: United States
Posts: 4
I don't know the brand name of it, but Home Depot has a driveway cleaner that I used in the past along with a wire brush and then the pressure washer. It's in a blue colored bleech style plastic bottle.
Old 05-31-18, 04:36 AM
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Join Date: Mar 2005
Location: USA
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The few times I've had to clean up graffiti on concrete I 'painted' the graffiti with paint stripper, let it work and then pressure washed.

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