How long must concrete cure before staining it?

Concrete should ideally cure for at least 28 days before staining. This allows the concrete to achieve its maximum strength and ensures that moisture levels are low enough for proper adhesion of the stain. However, some stains may be applied sooner, typically after 7 days, depending on the specific product and conditions, so it's important to follow the manufacturer's recommendations. Always conduct a moisture test to confirm readiness before staining.