Abstract: A configuration for sealing or sound-proofing cavities, for example in the vicinity of a chassis or a body of a motor vehicle, includes two half-shells which are separately produced, which can be locked together and which, in an interlocked state, form a free, outwardly open ring-shaped gap in an outer, intermediate peripheral edge region. The ring-shaped gap is inwardly limited by an inner contour on one of the half-shells. A heat-expansible element as a contoured ring-like plate has a form which substantially corresponds to that of the ring-shaped gap formed between the two half-shells on their outer wall. The configuration is material-saving and can be produced and mounted at low cost.

Abstract: A configuration for sealing or sound-proofing cavities, for example in the vicinity of a chassis or a body of a motor vehicle, includes two half-shells which are separately produced, which can be locked together and which, in an interlocked state, form a free, outwardly open ring-shaped gap in an outer, intermediate peripheral edge region. The ring-shaped gap is inwardly limited by an inner contour on one of the half-shells. A heat-expansible element as a contoured ring-like plate has a form which substantially corresponds to that of the ring-shaped gap formed between the two half-shells on their outer wall. The configuration is material-saving and can be produced and mounted at low cost.

Abstract: A holder plate has two individual plates that extend at a distance from one another and are connected with each other by a film hinge. The hollow space between the individual plates is filled with an expandable material. For the fixation of the functional position of the holder plate at least one clamping and fixation element is pushed on the outer surfaces of the individual plates. The individual plates can also be connected with each other by integrally formed locking elements. The clamping and fixation element is advantageously formed as one piece. The individual plates of the holder plate can be produced in their unfolded state and can be folded into their functional position. When the expandable material is applied in partial segments to the individual plates of the holder plate, the partial segments are provided with a film hinge such that they can be flipped into the functional position.