The invention relates to a method for manufacturing a generally circular, oval or rectangular sealing ring (6) for an acoustic device (1； 1´), said sealing ring (6) being configured for being in contact with the skin of a user during use. The method comprises: forming, in an injection molding step (16), a covering (9) being generally U-shaped in cross-section； and attaching (18) the end sections (9a, 9b) of said covering (9) to a support element (13). The invention also relates to a sealing ring (6) of the above-mentioned type.
