A composition comprises a quantity in the range of about 2.5% by weight to about 22% by weight of at least one elastomer selected from a group consisting of styrene-butadiene copolymers, styrene-butadiene-styrene (block) copolymers, styrene-isoprene (block) copolymers and/or styrene-isoprene-styrene (block) copolymers, synthetic and/or natural rubbers; a quantity in the range of about 12% by weight to about 35% by weight of at least one pulverulent mineral filler; a quantity in the range of about 0.5% by weight to about 5% by weight of at least one fibrous anti-flow additive to adjust strength, selected from the group consisting of cellulose, glass fibers and/or synthetic fibers; and a quantity in the range of about 0.1% by weight to about 8% by weight of at least one polymer produced from an olefin and from an α, β-unsaturated carboxylic acid and/or α,β-unsaturated carboxyclic anhydride, where each of the percentages by weight is based on the entire quantity of the composition.