Acid staining / dyed concrete, is a decorative finish for concrete surfaces that produces an array of finishes that not only change the surface color, but also permeate the concrete creating a rich translucent tone. A finished acid stain concrete surface is an ideal way to give your home or business a customized look. There are eight standard colors available for acid staining concrete. While these colors are primarily hues of brown, there are blue-green stains as well. For additional colors, these standard colors can be mixed, to create a color that enhances the space and desired style. This versatility makes it the perfect choice for your home or office space. Acid staining can be done to most concrete surfaces so long as said surface is free of grime, coatings, glues, curing membranes or sealers. Many concrete contractors prefer to use acid staining with newly poured concrete, as this ensures the concrete is free of any items that can hinder the staining process.