SEARCH Articles Figures Tables IV illustrates a feature that perhaps is the most important property of all. It tends to be ignored most often by people who have not had to live with formulators of compounded products. These materials have to be blended with a variety of minerals,pigments, fillers, and additives of all sorts. Usually the index of quality is the minimum amount of oil that can disperse, or turn into putty, a standardized quantity of pigment. This is true across the whole spectrum of such formulated products from printing inks to mastics. [Publishers Imprint]