Add depth, natural color and richness to concrete surfaces with water-based concrete stains. They’re less toxic and easier to apply than acid stains with minimal cleanup. Water-based concrete stains penetrate and deposit color much like a wood stains and are then sealed to lock in the color. They do not interact with the concrete so color stays consistent. If you’re thinking beyond the subdued palette of acid stains water-based stains may be the answer. They come in a full color spectrum of brilliant colors as well as black, white and metallic. Water-based stains are low in VOCs (Volatile Organic Compounds).