Powder mulch colorant is not processed beyond the base material, so color variety is limited and performance can vary from batch to batch. Liquid mulch colorants use similar pigments, but the high-energy manufacturing process optimizes performance and offers a wide variety of color options. The addition of resins and other additives improves adherence to mulch, improves weathering resistance and reduces wash-off. Additionally, with liquid mulch colorant there is no risk of respiratory exposure or airborne emissions. Overall, liquid mulch colorant is a more efficient, versatile and safe product.