Contains calcium chloride - the best ice melter ingredient - best combination of speed and duration in ice melting Generates heat and brine quickly for a synergistic effect to make other ingredients perform better and improves effective temperature of Pristine to -22°C Dye shows where product is applied and reduces over-application Dye is applied using a calcium chloride brine carrier - calcium chloride coats each granule to improve effectiveness of the overall blend - a technique used by highway departments to improve the performance of road salt Will not harm vegetation, properly air-entrained concrete, or pets when used as directed Safe to use: calcium chloride is used extensively in the environment by highways departments for de-icing and dust control (gravel roads); it is also used as fertilizer in agriculture, and as a food additive - a safe and proven ingredient