Curable adhesive comprising, based on the mass of the curable adhesive: a) one or more (meth)acrylate block copolymers of the structure A-B-A in a combined mass fraction of 25% or more, where the A blocks independently of one another stand for a poly(meth)acrylate having a glass transition temperature Tg of 50°C or more which is preparable by polymerization of an A monomer composition composed of A monomers, where the B block stands for a poly(meth)acrylate having a glass transition temperature Tg of less than 50°C which is preparable by polymerization of a B monomer composition composed of B monomers, b) one or more polymerizable first epoxide compounds E1 in a combined mass fraction of 50 or more, where the first epoxide compound E1 at 25°C is a solid or a high-viscosity substance having a dynamic viscosity of 50 Pa s or more, and c) one or more polymerizable second epoxide compounds E2 in a combined mass fraction of 50 or more, where the second epoxide compound E2 at 25°C is a liquid having a dynamic viscosity of 40 Pa s or less, where the amount-of-substance-weighted polar component of the Hansen solubility parameters <δ p > of the monomer units derived from A monomers in the A blocks, <δ p >, is in the range from 9.0 to 11.0 MPa 0.5, and where the amount-of-substance-weighted polar component of the Hansen solubility parameters <δ p > of the monomer units derived from B monomers in the B blocks, <δ p >, is less than 9 MPa 0.5. a) one or more (meth)acrylate block copolymers of the structure A-B-A in a combined mass fraction of 25% or more, where the A blocks independently of one another stand for a poly(meth)acrylate having a glass transition temperature Tg of 50°C or more which is preparable by polymerization of an A monomer composition composed of A monomers, where the B block stands for a poly(meth)acrylate having a glass transition temperature Tg of less than 50°C which is preparable by polymerization of a B monomer composition composed of B monomers, where the A blocks independently of one another stand for a poly(meth)acrylate having a glass transition temperature Tg of 50°C or more which is preparable by polymerization of an A monomer composition composed of A monomers, where the B block stands for a poly(meth)acrylate having a glass transition temperature Tg of less than 50°C which is preparable by polymerization of a B monomer composition composed of B monomers, b) one or more polymerizable first epoxide compounds E1 in a combined mass fraction of 50 or more, where the first epoxide compound E1 at 25°C is a solid or a high-viscosity substance having a dynamic viscosity of 50 Pa s or more, and c) one or more polymerizable second epoxide compounds E2 in a combined mass fraction of 50 or more, where the second epoxide compound E2 at 25°C is a liquid having a dynamic viscosity of 40 Pa s or less, where the amount-of-substance-weighted polar component of the Hansen solubility parameters <δ p > of the monomer units derived from A monomers in the A blocks, <δ p >, is in the range from 9.0 to 11.0 MPa 0.5, and where the amount-of-substance-weighted polar component of the Hansen solubility parameters <δ p > of the monomer units derived from B monomers in the B blocks, <δ p >, is less than 9 MPa 0.5. where the amount-of-substance-weighted polar component of the Hansen solubility parameters <δ p > of the monomer units derived from A monomers in the A blocks, <δ p >, is in the range from 9.0 to 11.0 MPa 0.5, and where the amount-of-substance-weighted polar component of the Hansen solubility parameters <δ p > of the monomer units derived from B monomers in the B blocks, <δ p >, is less than 9 MPa 0.5.