The present invention is related to the industry of coatings and more specifically to the industry that manufactures bases for paints and even more specifically, to the industry that manufactures inorganic material bases. Our invention has, with respect to the current state of the art, the following advantages: coating characteristics, improved coloring and whiteness capacity which allow for adequate handling of the same even with a large concentration of solids, made of less costly materials. Said composition is characterized by consisting in its composition of kaolin with the following distribution of particle size: between 88 and 98% of the particles should be smaller than 2 microns and only between 10 and 30% should be smaller than 0.2 microns; and of calcium carbonate with a distribution of particle size of between 88 and 96% of the particles smaller than 2 microns and between 4 and 14% smaller than 0.2 microns.