Abstract: The invention relates to a method for producing a rotationally symmetric body, especially a hose, specifically a large hose, by utilizing a rotating core as a supporting body for the inner layer; a device for storing and guiding the thread, the device being able to move back and forth in a parallel manner relative to the rotating core; and a molding head which can also move back and forth in a parallel manner relative to the rotating core and in which at least two reactive liquid or pasty components for the reaction are brought. The inner layer and the outer layer are constructed by means of the reaction mixture which exits the molding head. In addition, the thread is saturated with the reaction mixture during the production of the strength supporter, whereby the incorporation of the thread results during a reaction degree of no more than 50%. Useful method parameters are introduced.