Abstract: A cavity sealing bulkhead part is provided comprising a first structural component, a second structural component and a hinge for producing a movable connection between the first structural component and the second structural component; the hinge comprising a first hinge component assigned to the first structural component and a second hinge component assigned to the second structural component, the first hinge component and the second hinge component being movable relative to one another about a shaft, at least one of the two hinge components comprising an expansion material that is convertible from an initial state into an expanded state by activation, and in the expanded state acting as a sealant between the first and second hinge components; and the bulkhead part being produced in a two-component injection molding process using a carrier material and the expansion material; also provided are methods for producing the bulkhead part.

Abstract: The invention relates to a partition (1) for sealing and/or supporting a cavity, comprising a carrier (2) and an expansion material (3) arranged on the carrier (2), which expansion material can be transferred from an initial state to an expanded state by means of activation, wherein the carrier (2) comprises at least one compensation element (4), which provides variability of the effective sealing surface (5) of the carrier (2), such that a change in the effective sealing surface (5) of the carrier (2) can be brought about by means of a force acting on the carrier (2), a limiting element (6) being provided, by means of which a movement of at least one portion of the carrier (2) which accompanies the change in the effective sealing surface (5) is limited.

Abstract: A cavity sealing bulkhead part is provided comprising a first structural component, a second structural component and a hinge for producing a movable connection between the first structural component and the second structural component; the hinge comprising a first hinge component assigned to the first structural component and a second hinge component assigned to the second structural component, the first hinge component and the second hinge component being movable relative to one another about a shaft, at least one of the two hinge components comprising an expansion material that is convertible from an initial state into an expanded state by activation, and in the expanded state acting as a sealant between the first and second hinge components; and the bulkhead part being produced in a two-component injection molding process using a carrier material and the expansion material; also provided are methods for producing the bulkhead part.