Process for producing coatings by I) selecting the selected photoinitiator B) according to the following method and with the following condition: 2% by weight of the photoinitiator is dissolved in isobornyl acrylate and 20-80% of the double bonds are free-radically polymerized on a substrate by means of a UV lamp with a layer thickness of 100 μm, to obtain a coating having a maximum in the exothermic peak in degrees Celsius at temperatures less than or equal to 160°C, measured by means of DSC to DIN EN ISO 11357-1; II) curing thermally curable and radiation-curable formulations composed of A) 45% to 99.9% by weight of at least one radiation-curable component and B) 0.1% to 5% by weight of at least one selected free-radically initiating photoinitiator; and optionally C) 0.01% to 50% by weight of at least one additive, and the sum total of A) and B) and any C) is 100% by weight, wherein said formulation, after application to a substrate, is cured at least partly with radiation, wherein an average of at least 20% but not more than 95% of the polymerizable double bonds are reacted, then the coated substrate is processed further, and then the coating on the substrate is heated thermally at from 60 to 220°C, and the coating is cured fully. I) selecting the selected photoinitiator B) according to the following method and with the following condition: 2% by weight of the photoinitiator is dissolved in isobornyl acrylate and 20-80% of the double bonds are free-radically polymerized on a substrate by means of a UV lamp with a layer thickness of 100 μm, to obtain a coating having a maximum in the exothermic peak in degrees Celsius at temperatures less than or equal to 160°C, measured by means of DSC to DIN EN ISO 11357-1; 2% by weight of the photoinitiator is dissolved in isobornyl acrylate and 20-80% of the double bonds are free-radically polymerized on a substrate by means of a UV lamp with a layer thickness of 100 μm, to obtain a coating having a maximum in the exothermic peak in degrees Celsius at temperatures less than or equal to 160°C, measured by means of DSC to DIN EN ISO 11357-1; II) curing thermally curable and radiation-curable formulations composed of A) 45% to 99.9% by weight of at least one radiation-curable component and B) 0.1% to 5% by weight of at least one selected free-radically initiating photoinitiator; and optionally C) 0.01% to 50% by weight of at least one additive, and the sum total of A) and B) and any C) is 100% by weight, wherein said formulation, after application to a substrate, is cured at least partly with radiation, wherein an average of at least 20% but not more than 95% of the polymerizable double bonds are reacted, then the coated substrate is processed further, and then the coating on the substrate is heated thermally at from 60 to 220°C, and the coating is cured fully. A) 45% to 99.9% by weight of at least one radiation-curable component and B) 0.1% to 5% by weight of at least one selected free-radically initiating photoinitiator; and optionally C) 0.01% to 50% by weight of at least one additive, and the sum total of A) and B) and any C) is 100% by weight, wherein said formulation, after application to a substrate, is cured at least partly with radiation, wherein an average of at least 20% but not more than 95% of the polymerizable double bonds are reacted, then the coated substrate is processed further, and then the coating on the substrate is heated thermally at from 60 to 220°C, and the coating is cured fully.