Abstract: A method for forming a longitudinally water-tight section in a predetermined area of a multi-conductor wiring system. The multi-conductor wiring system has a plurality of individual conductors, each individual conductor being encased in an insulative sheath.

Abstract: A method is disclosed for forming longitudinally watertight sealed portions in a cable bundle comprising a plurality of cable strands which employs a composite adhesive strip having at least two layers, a first layer consisting of a mass having good adhesive properties at ambient temperature, and a second layer consisting of a melt adhesive. At the location of the portion to be sealed, the layer of the composite adhesive strip having good adhesive properties at ambient temperature is adhesively secured to the spread-out cable strands of the cable bundle to be sealed. After winding the cable strand layer provided with the composite adhesive strip upon itself or folding it together, an outer heat-shrinkable material (hose or sheet material) is applied about the portion to be sealed.

Abstract: The invention relates to a method and an assembly kit for forming locally defined longitudinally water-tight sections in a wiring comprising a plurality of conductor strands, individual conductors and/or cable strands for the electric or electronic control of functions. Inserted between the conductor strands of such a wiring is a plastic element containing, or consisting of, a thermoplastic melt adhesive. This plastic element is caused to expand in response to being heated. A section of a heat-shrinkable component is mounted on the exterior of the wiring. Application of heat causes the shrinkable component to tightly contract around the wiring, and the plastic element positioned between the conductor strands to expand. The contraction of the heat-shrinkable component and the expansion of the plastic element result in the generation of pressure forces within the space enclosed by the heat-shrinkable component, whereby the heat-softened melt adhesive is sealingly forced into any existing voids.