Acid Man 100 stains create beautiful varied colors on cured concrete by reacting with the cement in the concrete surface. Acid stains are very durable and the colors that they yield will last as long as the concrete surface that they are applied on. Every concrete floor will contain different amounts of minerals resulting in more vibrant coloration's and shades on the same floor. No two floors will look alike. The mottled and varied appearance of acid stained floors is common and also one of the big reasons the process has so much appeal. Acid Man 100 stains are produced in 10 colors. It is highly recommended to sample stain in an inconspicuous area to determine that the final appearance will be acceptable. Good for all types of concrete surfaces.