Eco-Stain™ is a liquid semi-transparent water-based concrete stain for accent coloring that can be sprayed, brushed rolled or even sponged. Used for staining concrete floors and walls including overlays and cast concrete products.Eco-Stan is now available in a concentrated liquid 32oz. bottle that makes one full gallon. Offered in 30 UV stable concrete stain colors, EcoStain™ can be diluted up to 10:1 to create virtually any color stain color desired. Applying concrete dyes has never been easier.