A flexographic photocurable printing blank comprising: a) a support layer; b) one or more photocurable layers disposed on the support layer, wherein the one or more photocurable layers comprise: i) a binder; ii) one or more monomers; iii) a photoinitiator; iv) an additive selected from the group consisting of phosphites, phosphines, thioether amine compounds, and combinations of one or more of the foregoing; and v) an additional component comprising amine moieties, wherein the additional component comprising amine moieties is one or more components selected from the group consisting of hindered amine light stabilizers selected from the group consisting of bis(2,2,6,6-tetramethyl-4-piperidinyl)sebacate, derivatives of 2,2,6,6-tetramethylpiperidine, derivatives of 1,2,2,6,6-pentamethylpiperidine; dimethyl succinate polymer with 4-hydroxy-2,2,6,6-tetramethyl-1-piperidine ethanol, poly[[6-[(1,1,3,3,-tetramethylbutyl)amino-s-triazine-2,4-diyl][2,2,6,6-tetramethyl-4-piperidyl)imino]]hexamethyl-ylene[(2,2,6,6-tetramethyl-4-piperidyl)imino]], N,N',N',N'''-tetrakis(4,6-bis(butyl-(N-methyl-2,2,6,6-tetrametbylpiperidin-4-yl) amino)triazin-2-yl)-4,7-diazadecane-1,10-diamine, and combinations of one or more of the foregoing, amine acrylates, and thermal polymerization inhibitors selected from aluminum N-nitroso-N-phenylhydroxylamine, a liquid blend of aluminum N-nitrosophenylhydroxylamine and di-trimethylol-propane tetraacrylate, and combinations of the foregoing; c) a laser ablatable masking layer disposed on the one or more photocurable layers, the laser ablatable masking layer comprising a radiation opaque material; and d) optionally, a removable coversheet. a) a support layer; b) one or more photocurable layers disposed on the support layer, wherein the one or more photocurable layers comprise: i) a binder; ii) one or more monomers; iii) a photoinitiator; iv) an additive selected from the group consisting of phosphites, phosphines, thioether amine compounds, and combinations of one or more of the foregoing; and v) an additional component comprising amine moieties, wherein the additional component comprising amine moieties is one or more components selected from the group consisting of hindered amine light stabilizers selected from the group consisting of bis(2,2,6,6-tetramethyl-4-piperidinyl)sebacate, derivatives of 2,2,6,6-tetramethylpiperidine, derivatives of 1,2,2,6,6-pentamethylpiperidine; dimethyl succinate polymer with 4-hydroxy-2,2,6,6-tetramethyl-1-piperidine ethanol, poly[[6-[(1,1,3,3,-tetramethylbutyl)amino-s-triazine-2,4-diyl][2,2,6,6-tetramethyl-4-piperidyl)imino]]hexamethyl-ylene[(2,2,6,6-tetramethyl-4-piperidyl)imino]], N,N',N',N'''-tetrakis(4,6-bis(butyl-(N-methyl-2,2,6,6-tetrametbylpiperidin-4-yl) amino)triazin-2-yl)-4,7-diazadecane-1,10-diamine, and combinations of one or more of the foregoing, amine acrylates, and thermal polymerization inhibitors selected from aluminum N-nitroso-N-phenylhydroxylamine, a liquid blend of aluminum N-nitrosophenylhydroxylamine and di-trimethylol-propane tetraacrylate, and combinations of the foregoing; i) a binder; ii) one or more monomers; iii) a photoinitiator; iv) an additive selected from the group consisting of phosphites, phosphines, thioether amine compounds, and combinations of one or more of the foregoing; and v) an additional component comprising amine moieties, wherein the additional component comprising amine moieties is one or more components selected from the group consisting of hindered amine light stabilizers selected from the group consisting of bis(2,2,6,6-tetramethyl-4-piperidinyl)sebacate, derivatives of 2,2,6,6-tetramethylpiperidine, derivatives of 1,2,2,6,6-pentamethylpiperidine; dimethyl succinate polymer with 4-hydroxy-2,2,6,6-tetramethyl-1-piperidine ethanol, poly[[6-[(1,1,3,3,-tetramethylbutyl)amino-s-triazine-2,4-diyl][2,2,6,6-tetramethyl-4-piperidyl)imino]]hexamethyl-ylene[(2,2,6,6-tetramethyl-4-piperidyl)imino]], N,N',N',N'''-tetrakis(4,6-bis(butyl-(N-methyl-2,2,6,6-tetrametbylpiperidin-4-yl) amino)triazin-2-yl)-4,7-diazadecane-1,10-diamine, and combinations of one or more of the foregoing, amine acrylates, and thermal polymerization inhibitors selected from aluminum N-nitroso-N-phenylhydroxylamine, a liquid blend of aluminum N-nitrosophenylhydroxylamine and di-trimethylol-propane tetraacrylate, and combinations of the foregoing; c) a laser ablatable masking layer disposed on the one or more photocurable layers, the laser ablatable masking layer comprising a radiation opaque material; and d) optionally, a removable coversheet.