Water-based concrete stain coloring, such as Eco-Stain, deliver micronized pigments into the concrete without the addition of acids or metallic ions to create rich colors to stain concrete floor surfaces. An excellent choice for “GREEN” cement projects. Water-based concrete staining is also more user-friendly than the typical reactive acid stain and offers a variety of application techniques. You will also find that Eco-Stains create the same lush, multi-hued look of traditional reactive acid stains. Typically there are many more color choices available, as a color is achieved from pigments, not a chemical reaction. Currently, there are 29 UV stable colors to choose from. You can apply them wet on wet, wet on dry, sprayed out of an airless gun or pump sprayer and brushed or sponged onto the cement surface.