Pressure-sensitive adhesive comprising: a) 40 - 70 wt%, based on the total weight of the adhesive, of at least one poly(meth)acrylate; b) 15 - 50 wt%, based on the total weight of the adhesive, of at least one synthetic rubber; and c) at least one tackifier compatible with the poly(meth)acrylate(s), characterized in that the pressure-sensitive adhesive is foamed, in that the at least one poly(meth)acrylate has a glass transition temperature of between -20 and -50°C, wherein the glass transition temperature of the poly(meth)acrylate is determined according to the description, in that the synthetic rubber is a block copolymer having an A-B, A-B-A, (A-B) n, (A-B) n X or (A-B-A) n X construction, in which - the blocks A independently of one another are a polymer formed by polymerization of at least one vinylaromatic; - the blocks B independently of one another are a polymer formed by polymerization of conjugated dienes having 4 to 18 C atoms and/or isobutylene, or are a partially or fully hydrogenated derivative of such a polymer; - X is the residue of a coupling reagent or initiator and - n is an integer ≥ 2, and in that the blocks A are glasslike blocks having a glass transition temperature which is at least 80°C; in that the monomers for preparing the poly(meth)acrylate include proportionally functional groups suitable for entering into linking reactions with epoxide groups and the poly(meth)acrylate is crosslinked by means of one or more substances containing epoxide groups. a) 40 - 70 wt%, based on the total weight of the adhesive, of at least one poly(meth)acrylate; b) 15 - 50 wt%, based on the total weight of the adhesive, of at least one synthetic rubber; and c) at least one tackifier compatible with the poly(meth)acrylate(s), in that the at least one poly(meth)acrylate has a glass transition temperature of between -20 and -50°C, wherein the glass transition temperature of the poly(meth)acrylate is determined according to the description, in that the synthetic rubber is a block copolymer having an A-B, A-B-A, (A-B) n, (A-B) n X or (A-B-A) n X construction, in which - the blocks A independently of one another are a polymer formed by polymerization of at least one vinylaromatic; - the blocks B independently of one another are a polymer formed by polymerization of conjugated dienes having 4 to 18 C atoms and/or isobutylene, or are a partially or fully hydrogenated derivative of such a polymer; - X is the residue of a coupling reagent or initiator and - n is an integer ≥ 2, and - the blocks A independently of one another are a polymer formed by polymerization of at least one vinylaromatic; - the blocks B independently of one another are a polymer formed by polymerization of conjugated dienes having 4 to 18 C atoms and/or isobutylene, or are a partially or fully hydrogenated derivative of such a polymer; - X is the residue of a coupling reagent or initiator and - n is an integer ≥ 2, and in that the blocks A are glasslike blocks having a glass transition temperature which is at least 80°C; in that the monomers for preparing the poly(meth)acrylate include proportionally functional groups suitable for entering into linking reactions with epoxide groups and the poly(meth)acrylate is crosslinked by means of one or more substances containing epoxide groups.