Cabot Corp.: EMPEROR 1800 provides high black color performance, rapid and economical dispersion, and long-term performance stability. Consisting of small-particle carbon black that is chemically modified in order to attach specific functional groups to the pigment surface, it is fully compatible with waterborne systems and delivers better performance than conventional oxidized carbon black pigments. It disperses quickly. As a result, grinding times are shortened and the quantity of dispersion additives required to achieve optimum performance can be considerably reduced.