Have a painted red concrete driveway 40 yrs old.

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Rodger Beatty

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Have a painted red concrete driveway 40 yrs old.
« on: July 29, 2014, 03:49:41 AM »
I wish to change the color to Black. It was suggested to use muriatic acid to etch the paint to get adhesion. I also have a pressure washer. What product do I use that will adhjere? The driveway is 60 x 30.

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Tex Rowe

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Re: Have a painted red concrete driveway 40 yrs old.
« Reply #1 on: July 29, 2014, 01:59:52 PM »
Hi Rodger,
muriatic acid or an acid etch would only be beneficial on bare slabs to really open up the pores. If surface already has an existing coating, then a good clean would be all that is necessary ensuring no parts are loose, peeling or flaking.