- 1). Allow the concrete smears to dry completely before you attempt to clean it. Trying to clean wet concrete on cultured stone will only smear it more.
- 2). Brush the smear gently using a stiff nylon scrub brush. Brush the surface until all the concrete has been removed.
- 3). Wipe the stone with a lint-free rag to remove any concrete dust created from the brushing action.
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