I have a colored stamped concrete driveway. It was installed before I bought the property. We believe it was a powder dye thrown on the top layer of concrete finished with a clear sealer that has now worn off in most areas.

I want to re-STAIN it with a charcoal grey color. Not with solid color sealers because I’ve been told they will peel/chop like paint. How can I achieve this and which products? Sandblasting is too expensive (I could redo a new driveway for the price of blasting), and grinding won’t work because of the grooves in the driveway. Muriatic acid? Chemical strippers? Seems very involved. If I can’t remove the existing color can I just try using a grey stain and see if it covers enough? If so which type of stain (water/oil/acid) and brands do you recommend. Also can you advise on the steps involved. I’ve consulted many pros in my area but can’t find stain experts. Most just want to paint my driveway but that will peel in a few years.

The cracks/holes were patched with cement (the light grey you see in the pictures).