A method for producing a device for edge sealing a part or a window pane of a vehicle body, which has a securing element by which the sealing device is securable to a body flange and which is provided to retain a sealing strip, wherein the securing element comprises a main member on which there is secured a trim element, which has a viewing face visible after installation on the vehicle body, and at least one connection member that protrudes from the main member and is provided for receiving the sealing strip, wherein the securing element has a clamping and locking member that protrudes from the main member and is arranged so as to form an insertion slot between the clamping and locking member and the connection member, the body flange being insertable in the insertion slot to secure the sealing device, wherein the connection member and/or the clamping and locking member have recesses, and wherein the sealing strip has pins that protrude through the recesses in the connection member and are provided for abutment against the body flange to support the securing element when secured to the body flange, the method comprising the steps of:
- making the securing element and the trim element and/or the sealing strip from plastic material and/or fiber composite material;
- and forming the securing element, on the one hand, and the trim element and/or the sealing strip, on the other hand, on each other by multi-component injection-molding, wherein the securing element, the trim element and the sealing strip are made of different plastic materials.