Response to muriatic acid and exposed aggregate concrete

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These are slabs: steps, sidewalk, and a pad. All horizontal surfaces. The muriatic acid wash (after the concrete has cured) was to get a nice finish by removing any leftover slurry, as I understand it. Then sealing to protect the finish.

I think I used Thompson's water seal before on a new driveway and wasn't too impressed. The other sealer type sounds good, and I will check into it, as well as the other good suggestions here.

The old concrete has big stones and is really awful ( I almost wrote: offal!) to pressure wash. I will attempt that first, though, and see.

Thanks for your replies.

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