Radiation curable hardcoat with improved weatherability

An article being a cured composition on a substrate, wherein said cured composition is produced by radiation curing a curable formulation on said substrate, said curable composition comprising at least three polyfunctional acrylate derivatives, a nanoscale filler, and a UV absorber, at least one of said acrylate derivatives having an acrylate functionality of at least 5 and an elongation of no greater than 5%, and at least two of said acrylate derivatives being diacrylates, wherein at least one of said diacrylates is an aliphatic polyester urethane diacrylate having an elongation of greater than 5% and a number average molecular weight of from 500 to about 2500 and wherein another of said diacrylates is a urethane-free diacrylate having a number average molecular weight of from about 150 to about 600, wherein the aliphatic polyester urethane multi-acryalte is present in an amount of 10 weight percent to 80 weight percent said cured composition, wherein the aliphatic polyester urethane diacrylate is present in an amount of 5 weight percent to 50 weight percent of the cured composition, and wherein the urethane-free diacrylate is present in an amount of 3 weight percent to 30 weight percent of the cured composition, said cured composition having a delta % haze of less than 10 after Taber abrasion testing using CS10F wheels and 500 gram weights for 500 cycles, and said cured composition, after accelerated weathering using a Xenon arc Weather-o-meter to provide UV exposure of 11,000 kJ/m2, exhibiting no cracks upon visual inspection, having a percent haze of less than 7, and a yellowness index of less than 4.