Staining concrete can be an inexpensive way to update the exterior look of your home. ... Concrete acid stain contains a mixture of water, mineral salts, and muriatic acid. The finished stain will create natural tones that are an impressive improvement from unstained concrete slabs and walkways.

How do you get concrete stains off slabs?

Rinse the concrete surface and scrub vigorously with a stiff brush and clean water. Prepare a solution of 5% sodium hydroxide (caustic soda - NaOH). Daub it over the oil stain using an old paintbrush and allow it to dry for at least 24 hours. Rinse and scrub with clean water, then repeat as required.

Are concrete stains permanent?

Although concrete stain is permanent and won't flake off like paint, it penetrates only the top layer of the concrete surface and will eventually wear away as the surface is worn by traffic or weather exposure.