The found present refers to a structure of estate packing, in particular for glass joints in ducts or pipages in pressure. The packing is constituted from a body to realized ring-like development in destined material elastically deformed them and to being interposed between the internal surface of a first tubular body and the external surface of according to tubular body partially inserted in the first tubular body in order to realize the estate in the splice zone. The body of the packing introduces an axial extremity tapered and the spread opposite extremity in two labbri. The tapered axial extremity is defined from an external conical surface and a conical surface inner between coaxial they and to bases contrapposte. Moreover, on the external surface and the internal surface of the body of the packing prominences distanced from the superficial cited conic sections and delimited are previewed, from the part turned towards the tapered extremity, from features of superficial conic sections that are shrunk respective in direction of the tapered extremity and the spread extremity.