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I just stamped a pad yesterday that also had a sidewalk I used red integural color with dark brown release. Some of the release had got on the sidewalk which had a broom finish, I had covered the walk with plastic but some had gotten under and instead if trying to rub and rebroom I left it alone because it was too set too rework. Is there a way anyone has came accross to remove the release from the walk or will it be perm. stained. I thought of diluting some muratic acid and scrubbing the sidewalk before sealing or just trying soap/water and scrubbing.

Thanks