The invention relates to a method for manufacturing an elastomeric composition having a self-sealing property, containing at least (a significant percentage of parts by weight percent of a solid elastomer): an unsaturated solid diene elastomer; between 30 and 90 percent of a hydrocarbon resin; 0 to less than 30 percent of a filler; between 0.5 and 15 percent of thiuram polysulfide, wherein, during a first step or step (a), a master batch is prepared, comprising at least the unsaturated solid diene elastomer and between 30 and 90 percent of a hydrocarbon resin, by mixing said various components in a mixer at or up to a so-called "hot-mixing" temperature, which is higher than the softening temperature of the hydrocarbon resin.