Abstract: Devices and methods described herein operate with high temperature parts, such as heated metal parts obtained from a furnace via a conveyer. For example, in an embodiment, heated parts are coated with a coating solution by spraying the solution onto the parts without a quenching process. Methods and devices in embodiments allow cutting the volume of coating solution required for coating parts. Further, by not quenching the heated parts, heat remaining in the parts after coating process can be utilized for subsequent heat-requiring steps. Further, dispensing flow rate of the coating solution can be adjusted by a pump, thereby controlling coating density and temperature of the parts. Coated parts can dry without forced air, additional heat, or additional time. This allows a secondary operation shortly after the coating process, for which a dry surface is required.