Abstract: A sealing system for a cable fitting element of heat shrinkable material having a longitudinally extending opening with at least one longitudinally extending bead portion being disposed along a side of the opening and being receivable in a clamp portion forming a seal of the opening characterized by one of the clamp portions and bead portions being substantially rigid and unaffected by heat and the other of said bead and clamp portions having a permanent shape which is tightly engaged with the one portion to form a seal. To facilitate assembly, the other portion has a temporary shape and has been deformed to a temporary shape to enable easy assembly and will return to the permanent shape when the fitting element is heated to an elevated temperature for the shrinking process. In one embodiment, the clamp portion is a separate rigid member and the bead portion projects along the opening having one surface forming a sealing surface and the other surfaces engaged by the clamp.