Butterfield Color's Uni-Mix Liquid Integral Concrete Colorant is a pre-measured admixture for integrally coloring ready mixed concrete during batching. It conforms to ASTM Standard C979 (Standard Specification for Pigments for Integrally Colored Concrete) and is a blend of non-fading synthetic iron oxides that produce uniform, streak-free colors in concrete. Uni-Mix Liquid colorants mix freely, quickly and evenly without additional water, maintaining the strength and freeze/thaw resistance of the cured concrete. Superior quality control during manufacturing ensures that your installations will have uniform color from load-to-load and year-to-year. Uni-Mix Liquid Integral Concrete Colorant is suitable for all concrete flat work installations such as interior floors and exterior hardscapes, as well as precast, tilt-up and cast-in-place applications. For truly unique and creative concrete installations, use of Uni-Mix Liquid Integral Concrete Colorant can be combined with other Butterfield Color products: Perma-Cast Shake-on Color Hardener, Perma-Cast Sierra Stain, Elements Transparent Concrete Stain, Butterfield Color Stamping Tools, Perma-Cast Antiquing Release, Butterfield Color Clear Liquid Release and Perma-Tique Antiquing Agent. Uni-Mix Liquid Integral Concrete Colorant can be added to ready mixed concrete at the batch plant or on site with pre-measured pails made with a Butterfield Color Uni-Mix Liquid Dispensing System. It is available in 48 standard colors. Butterfield Color Uni-Mix Liquid Dispensing Systems also allow for the formulation of numerous custom colors.