A device for interruption-free coating of can bodies with a coating liquid comprises an inlet container for providing the coating liquid to be applied, a pressurized air source for supplying pressurized air, an application nozzle for spraying the coating liquid with an application pressure onto the container body. An intermediary container is provided, which is connected on the inlet side to the inlet container by means of the inlet pipe and which is connected on the outlet side to the application nozzle by means of an outlet pipe.