A photocurable relief image printing element 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; and iv) an additive selected from the group consisting of (i) a phosphite selected from the group consisting of tris(nonylphenyl) phosphite,, diphenyl phosphite, tridecyl phosphite, triisodecyl phosphite, tris(tridecyl)phosphite, trilauryl phosphite, disteraryl pentaerythriol diphosphite, diisodecyl phenyl phosphite, diphenyl isodecyl phosphite, diphenyl octyl phosphite, diphenyl isooctyl phosphite, diphenyl tri isodecyl monophenyl dipropyleneglycol diphosphite, alkyl bisphenol A phosphite, tetraphenyl dipropyleneglycol diphosphite, poly(dipropyleneglycol) phenyl phosphite, tris(dipropylene glycol) phosphite, and dioleyl hydrogen phosphite and combinations of one or more of the foregoing,, (ii) thioether amine compounds, and (iii) combinations of one or more 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; and iv) an additive selected from the group consisting of (i) a phosphite selected from the group consisting of tris(nonylphenyl) phosphite,, diphenyl phosphite, tridecyl phosphite, triisodecyl phosphite, tris(tridecyl)phosphite, trilauryl phosphite, disteraryl pentaerythriol diphosphite, diisodecyl phenyl phosphite, diphenyl isodecyl phosphite, diphenyl octyl phosphite, diphenyl isooctyl phosphite, diphenyl tri isodecyl monophenyl dipropyleneglycol diphosphite, alkyl bisphenol A phosphite, tetraphenyl dipropyleneglycol diphosphite, poly(dipropyleneglycol) phenyl phosphite, tris(dipropylene glycol) phosphite, and dioleyl hydrogen phosphite and combinations of one or more of the foregoing,, (ii) thioether amine compounds, and (iii) combinations of one or more of the foregoing; i) a binder; ii) one or more monomers; iii) a photoinitiator; and iv) an additive selected from the group consisting of (i) a phosphite selected from the group consisting of tris(nonylphenyl) phosphite,, diphenyl phosphite, tridecyl phosphite, triisodecyl phosphite, tris(tridecyl)phosphite, trilauryl phosphite, disteraryl pentaerythriol diphosphite, diisodecyl phenyl phosphite, diphenyl isodecyl phosphite, diphenyl octyl phosphite, diphenyl isooctyl phosphite, diphenyl tri isodecyl monophenyl dipropyleneglycol diphosphite, alkyl bisphenol A phosphite, tetraphenyl dipropyleneglycol diphosphite, poly(dipropyleneglycol) phenyl phosphite, tris(dipropylene glycol) phosphite, and dioleyl hydrogen phosphite and combinations of one or more of the foregoing,, (ii) thioether amine compounds, and (iii) combinations of one or more 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.