The seal is a very important part of the automotive wiring harness, and its quality is directly related to the function of the wiring harness, whether it is directly used in the wire harness or the automotive connector.

More and more attention has been paid to the durability and reliability of auto parts. As a protective material, silicone rubber parts are widely used in automobiles, among which the importance of the sealing ring is self-evident, especially for the wiring harness protection of the engine compartment and the lower chassis of the automobile, because usually, these two places are more likely to be in harsh environment.

There is a concept of “wet zone” that we need to know. Generally speaking, we refer to the areas where the engine compartment and the lower body of the car are exposed to the air and often affected by rain and water as “wet zone”. Correspondingly, parts like the cockpit and trunk are unaffected by rain and this part is called the “dry zone”.

One of the biggest roles of the wiring harness seal is to isolate the wet area and the dry area. The common part is to assemble one between the engine room and the cockpit to separate the dry area and the wet area. There is also the need to assemble a seal in the left and right rear wheel ABS wiring harness, specifically under the rear seat (such as golf), there is a seal to separate the inside and outside parts, to ensure that the water at the bottom of the driving process will not leak into the cab.

Each qualified wire harness will be tested by a gas seal to ensure that the seal on the automotive wiring harness can work.

What are the principles of testing the quality of automotive seals? The process is simple. That is placing the automotive seal on the mold, and the