Acid Stain Floor Colors. Acid stain can be left on the surface longer if desired. Muriatic acid available in a variety of colors penetrates concrete and reacts to the lime deposits coloring the surface and giving a unique mottled swirly finish. This is completely normal and is part of the reaction process.
Direct colors stains create permanent color effects in concrete gunite cement plaster stucco shotcrete natural stone marble cultured stone limestone and other surfaces. Achieved through a natural chemical reaction within the concrete s surface acid stain changes the surface to the new color.
Acid staining is a tedious process.
Acid stains provide natural color and depth to concrete floors and other surfaces. Sherwin williams world of color doesn t stop with our paints our wide variety of stains can enhance and protect any porch deck trim or siding as well as concrete driveways and walkways. Each stain has different activation times to fully color the concrete generally from 4 to 8 hours. As the acid stain dries and processes a residue of alkali and minerals forms on the surface of the concrete.
