Sealing for Cables

Wiring looms in vehicles pass through areas which require them to be protected. This protection is achieved using different elastomer compounds, depending on the location.

These include bulkhead feed-through grommets which protect cables and form a tight seal between the engine compartment and the cabin, wiring sheaths or grommets which provide the interface between the vehicle body and the opening parts (doors, windows, tailgate and bonnet) and cable glands which provide the other, smaller interfaces. These components must be fully functional for the entire lifecycle of the vehicle.


With over 70 years of proven experience, SACRED supports its customers in the development of rubber components and, as a developer of raw material, tailors it to the customer’s individual specification. Weight and mechanical strength – either direct or indirect via plastic inserts, for example – form an integral part of SACRED’s design choice.

Bulkhead feed-through grommets, wiring sheaths and cable glands therefore fulfil their protective role in their respective environments.


The design must be perfectly adapted to the customer’s needs. It must therefore be as easy as possible to install into the vehicle, while guaranteeing a tight seal.

Working in partnership with our in-house experts in materials, process and tooling, we find the optimum solution to the customer’s specification in terms of elongating Rubber Compression Set, temperature resistance, etc.

Our customised design and manufacturing processes mean that we can adapt our products to ensure they are the perfect fit for your vehicle.


Bulkhead feed-through grommets, wiring sheaths and cable glands must be subjected to stringent tests, in line with the constraints they will encounter when the vehicle is running.  SACRED has control and test facilities which include testing for resistance to salt spray, hydrocarbon, AdBlue, brake fluid, extreme temperatures, dust and humidity.


Our products are used in all brands of passenger vehicles, from the most basic to the most sophisticated, and in all commercial vehicles.

We supply the OEMs to Peugeot, Citroën, DS Automobile, Toyota, Opel, Vauxhall, Dacia, Renault, Nissan and Alpine via Tier 1 equipment manufacturers such as Leoni, Yazaki, Sumitomo, Lear and Aptiv.

Contact us to discuss your specific requirements