Davis Colors™ are lightfast, lime-proof, weather-resistant color “admixtures” made of metal or mineral oxides either recycled from iron or refined from the earth. (Supra-Instant^®Black is a concentrated carbon black, treated in a proprietary process for extra tint strength and dispersability. It is an economical alternative where concrete is not air-entrained and is protected against water damage.) Innovative Mix-Ready^® bags disintegrate during mixing for clean color handling and no environmental waste.