A UV curable coating composition, comprising: an inert solvent; a first aliphatic urethane acrylate resin formed by the reaction of an aliphatic polyisocyanate component containing at least one of iminooxadiazine dione, isocyanurate, uretdione, urethane, allophanate, biuret and oxadiazine trione groups, with an alcohol component containing at least one monobasic, hydroxyl-functional linear or branched alkyl ester of meth(acrylic) acid wherein the first urethane acrylate resin has an average molecular weight of 800 to 2,500 Daltons, and wherein the first urethane acrylate resin contains 3 to 5 polymerizable acrylate groups per molecule; a second aliphatic urethane acrylate resin comprising the structure of formula II: wherein A 1, A 2, and A 3 are each a group of formula III: wherein R 1, R 2, and R 3 of formula III are the same or different, and each comprise a linear aliphatic group having from 2 to 12 carbon atoms, or a cycloaliphatic group having from 4 to 12 carbon atoms, wherein the second urethane acrylate has an average molecular weight of 500 to 2,000 Daltons, wherein the second urethane acrylate resin contains 4 to 7 polymerizable acrylate groups per molecule, and wherein the first aliphatic urethane acrylate resin and the second aliphatic urethane acrylate resin comprise a weight ratio of 1:3 to 3:1; a first multifunctional acrylate, wherein the first multifunctional acrylate has an average molecular weight of 170 to 1,000 Daltons, wherein the composition comprises 5% to 15% by weight of the first multifunctional acrylate, and wherein the first multifunctional acrylate comprises two polymerizable unsaturated groups per molecule; a second multifunctional acrylate, wherein the second multifunctional acrylate has an average molecular weight of 170 to 1,000 Daltons, wherein the composition comprises 15% to 25% by weight of the second multifunctional acrylate, and wherein the second multifunctional acrylate comprises three polymerizable unsaturated groups per molecule; a photoinitiator selected from the group consisting of diphenylphosphine oxides, phenylglyoxylates, α-hydroxyketones, and difunctional α-hydroxyketones.; a hindered amine light stabilizer; a UV absorber comprising at least one of a benzotriazole and a benzotriazine; and an organic-inorganic hybrid material. an inert solvent; a first aliphatic urethane acrylate resin formed by the reaction of an aliphatic polyisocyanate component containing at least one of iminooxadiazine dione, isocyanurate, uretdione, urethane, allophanate, biuret and oxadiazine trione groups, with an alcohol component containing at least one monobasic, hydroxyl-functional linear or branched alkyl ester of meth(acrylic) acid wherein the first urethane acrylate resin has an average molecular weight of 800 to 2,500 Daltons, and wherein the first urethane acrylate resin contains 3 to 5 polymerizable acrylate groups per molecule; a second aliphatic urethane acrylate resin comprising the structure of formula II: wherein A 1, A 2, and A 3 are each a group of formula III: wherein R 1, R 2, and R 3 of formula III are the same or different, and each comprise a linear aliphatic group having from 2 to 12 carbon atoms, or a cycloaliphatic group having from 4 to 12 carbon atoms, wherein the second urethane acrylate has an average molecular weight of 500 to 2,000 Daltons, wherein the second urethane acrylate resin contains 4 to 7 polymerizable acrylate groups per molecule, and wherein the first aliphatic urethane acrylate resin and the second aliphatic urethane acrylate resin comprise a weight ratio of 1:3 to 3:1; a first multifunctional acrylate, wherein the first multifunctional acrylate has an average molecular weight of 170 to 1,000 Daltons, wherein the composition comprises 5% to 15% by weight of the first multifunctional acrylate, and wherein the first multifunctional acrylate comprises two polymerizable unsaturated groups per molecule; a second multifunctional acrylate, wherein the second multifunctional acrylate has an average molecular weight of 170 to 1,000 Daltons, wherein the composition comprises 15% to 25% by weight of the second multifunctional acrylate, and wherein the second multifunctional acrylate comprises three polymerizable unsaturated groups per molecule; a photoinitiator selected from the group consisting of diphenylphosphine oxides, phenylglyoxylates, α-hydroxyketones, and difunctional α-hydroxyketones.; a hindered amine light stabilizer; a UV absorber comprising at least one of a benzotriazole and a benzotriazine; and an organic-inorganic hybrid material.