Abstract: A device according for coating workpieces of wood, wood materials, plastic, aluminium or the like, includes: a feed device for feeding a coating material; a pressing device for pressing the coating material onto a surface of a workpiece; a conveying device for inducing a relative movement between the pressing device and the respective workpiece; and an activation device for activating an adhesive on a coating material fed by the feed device and/or for activating an adhesive on a surface of a workpiece to be coated. The activation device includes at least one supply line for supplying an activation medium as well as a nozzle body having an activation medium inlet duct and an activation medium outlet region. The activation medium outlet region includes at least one outlet opening. The activation device also includes precisely one closure to close the outlet opening of the activation medium outlet region.