A composition, comprising a) 1.00 to 65.00% by weight of at least one compound of formula (I), wherein R 1 , R 2 , R 3 , R 4 are each independently H, C 1 -C 6 -alkyl, C 1 -C 6 -alkoxy, or C 1 -C 6 -alkoxy-C 1 -C 6 -alkyl; R 5 is H or C 1 -C 6 -alkyl; X is CR 6 R 7 ; R 6 , R 7 are each independently H, C 1 C 6 -alkyl, C 1 -C 6 -alkoxy, or C 1 -C 6 -alkoxy-C 1 -C 6 -alkyl; k is 1, 2, 3, 4 or 5, as component A; b) 1.00 to 60.00% by weight of at least one monomer having two (meth)acrylate groups and having a molecular weight M w no more than 500 Dalton, as component B; c) 0 to 25% by weight of at least one monomer having at least three (meth)acrylate groups and having a molecular weight M w of no more than 600 Dalton, as component C; d) 1.00 to 30.00% by weight of at least one polymer having at least two (meth)acrylate groups and having a molecular weight M w of at least 700 Dalton, as component D; e) 0 to 20.00% by weight of one or more photoinitiators, as component E; f) 0 to 10.00% by weight of one or more colorants, as component F; g) 0 to 2.00% by weight of one or more stabilizers, as component G; h) 0 to 50.00% by weight of one or more further monomers, as component H; j) 0 to 10.00% by weight of one or more further additives, as component J; with the proviso that the amount of components A) plus B) is at least 50% by weight, based on the total composition, and that in all cases the amounts of components A to J add up to 100% by weight. a) 1.00 to 65.00% by weight of at least one compound of formula (I), wherein R 1 , R 2 , R 3 , R 4 are each independently H, C 1 -C 6 -alkyl, C 1 -C 6 -alkoxy, or C 1 -C 6 -alkoxy-C 1 -C 6 -alkyl; R 5 is H or C 1 -C 6 -alkyl; X is CR 6 R 7 ; R 6 , R 7 are each independently H, C 1 C 6 -alkyl, C 1 -C 6 -alkoxy, or C 1 -C 6 -alkoxy-C 1 -C 6 -alkyl; k is 1, 2, 3, 4 or 5, as component A; R 1 , R 2 , R 3 , R 4 are each independently H, C 1 -C 6 -alkyl, C 1 -C 6 -alkoxy, or C 1 -C 6 -alkoxy-C 1 -C 6 -alkyl; R 5 is H or C 1 -C 6 -alkyl; X is CR 6 R 7 ; R 6 , R 7 are each independently H, C 1 C 6 -alkyl, C 1 -C 6 -alkoxy, or C 1 -C 6 -alkoxy-C 1 -C 6 -alkyl; k is 1, 2, 3, 4 or 5, as component A; b) 1.00 to 60.00% by weight of at least one monomer having two (meth)acrylate groups and having a molecular weight M w no more than 500 Dalton, as component B; c) 0 to 25% by weight of at least one monomer having at least three (meth)acrylate groups and having a molecular weight M w of no more than 600 Dalton, as component C; d) 1.00 to 30.00% by weight of at least one polymer having at least two (meth)acrylate groups and having a molecular weight M w of at least 700 Dalton, as component D; e) 0 to 20.00% by weight of one or more photoinitiators, as component E; f) 0 to 10.00% by weight of one or more colorants, as component F; g) 0 to 2.00% by weight of one or more stabilizers, as component G; h) 0 to 50.00% by weight of one or more further monomers, as component H; j) 0 to 10.00% by weight of one or more further additives, as component J; with the proviso that the amount of components A) plus B) is at least 50% by weight, based on the total composition, and that in all cases the amounts of components A to J add up to 100% by weight. <EOS>