Concrete acid stain colors are used to paint all types of concrete surfaces. This products penetrates the concrete texture and reacts with the calcium on its surface in order to stain concrete surfaces. As a result, the color obtained from acid stain is created by the reaction of this material with the concrete surface. For this reason, acid stain is not scientifically included in the color group. The amount of staining and created color spectrum depends on the type and quality of concrete surface and concrete grade. Higher concrete grade or more cement amount available on concrete surface will lead to higher paintability rate. For this reason, the final color of the acid stain is determined after its reaction with the concrete surface.