Can the Ashford Formula be applied to colored concrete?
Yes. If the concrete is integrally colored, i.e. the pigment is added at the batch plant, then the concrete should be fully cured before the Ashford Formula is applied. If the concrete is stained with mineral salts, the Ashford Formula should still not be applied until the concrete has cured for 1 month. Note: Mineral stains are normally applied at 21 days after concrete placement, so the Ashford Formula can be applied just over a week after the stain.