A coated article comprising: a substrate that is transparent to electromagnetic radiation having a frequency of 22 to 81 GHz; and a curable film-forming composition applied to at least one surface of the substrate and cured thereon, the curable film-forming composition comprising: (a) a first film-forming polymer prepared from at least one hydrophobic monomer and having reactive functional groups, wherein the first film-forming polymer (a) is present in the curable film-forming composition in an amount of 20 to 40 percent by weight, based on the total weight of resin solids in the curable film-forming composition; (b) a second film-forming polymer different from the first film-forming polymer (a) and prepared from at least one hydrophobic monomer, wherein the second film-forming polymer (b) is present in the curable film-forming composition in an amount of 0.5 to 15 percent by weight, based on the total weight of resin solids in the curable film-forming composition; and (c) a curing agent comprising functional groups reactive with the reactive functional groups in (a); wherein upon application of the curable film-forming composition to a substrate to form a coating layer, the first film-forming polymer (a) is distributed throughout the coating layer, and a concentration of the second film-forming polymer (b) is greater within a surface region of the coating layer than a concentration of the second film-forming polymer (b) within a bulk region of the coating layer; and wherein the coated article demonstrates a transmission of electromagnetic radiation having a frequency of 22 to 81 GHz in the range of 70% to 100%, measured as shown in the Examples. a substrate that is transparent to electromagnetic radiation having a frequency of 22 to 81 GHz; and a curable film-forming composition applied to at least one surface of the substrate and cured thereon, the curable film-forming composition comprising: (a) a first film-forming polymer prepared from at least one hydrophobic monomer and having reactive functional groups, wherein the first film-forming polymer (a) is present in the curable film-forming composition in an amount of 20 to 40 percent by weight, based on the total weight of resin solids in the curable film-forming composition; (b) a second film-forming polymer different from the first film-forming polymer (a) and prepared from at least one hydrophobic monomer, wherein the second film-forming polymer (b) is present in the curable film-forming composition in an amount of 0.5 to 15 percent by weight, based on the total weight of resin solids in the curable film-forming composition; and (c) a curing agent comprising functional groups reactive with the reactive functional groups in (a); wherein upon application of the curable film-forming composition to a substrate to form a coating layer, the first film-forming polymer (a) is distributed throughout the coating layer, and a concentration of the second film-forming polymer (b) is greater within a surface region of the coating layer than a concentration of the second film-forming polymer (b) within a bulk region of the coating layer; and wherein the coated article demonstrates a transmission of electromagnetic radiation having a frequency of 22 to 81 GHz in the range of 70% to 100%, measured as shown in the Examples. (a) a first film-forming polymer prepared from at least one hydrophobic monomer and having reactive functional groups, wherein the first film-forming polymer (a) is present in the curable film-forming composition in an amount of 20 to 40 percent by weight, based on the total weight of resin solids in the curable film-forming composition; (b) a second film-forming polymer different from the first film-forming polymer (a) and prepared from at least one hydrophobic monomer, wherein the second film-forming polymer (b) is present in the curable film-forming composition in an amount of 0.5 to 15 percent by weight, based on the total weight of resin solids in the curable film-forming composition; and (c) a curing agent comprising functional groups reactive with the reactive functional groups in (a); wherein upon application of the curable film-forming composition to a substrate to form a coating layer, the first film-forming polymer (a) is distributed throughout the coating layer, and a concentration of the second film-forming polymer (b) is greater within a surface region of the coating layer than a concentration of the second film-forming polymer (b) within a bulk region of the coating layer; and wherein the coated article demonstrates a transmission of electromagnetic radiation having a frequency of 22 to 81 GHz in the range of 70% to 100%, measured as shown in the Examples.