As more and more mechanical components are replaced by electronic components, and the increasing popularity of driver assistance systems, the number of electronic components in automobiles is increasing rapidly. This trend has put greater pressure on car manufacturers and their suppliers, prompting them to find effective ways to protect the electronic components in the car from pollution and sealing failure. Ensuring the reliable operation of these electronic components during the life of the car is the primary goal. This is not only to improve cost-effectiveness, but also to promote the brand's high-quality image and reliability.

    All electronic components, whether they are compressors, pumps, motors, control units, or sensors in the increasingly popular active safety system, will be affected by large temperature fluctuations throughout their life. This happens when the component shell heats up during vehicle operation and comes in contact with low-temperature sputtering water or car wash water on the road surface. This temperature fluctuation can create a significant vacuum effect in the housing of the electronic device. The resulting huge pressure difference may severely damage the sealing rings and sealing components that protect sensitive electronic devices, resulting in the intrusion of dirt particles and liquids, corrosive effects on electronic components and shortening their service life. Damaged or defective parts usually have to be replaced, which increases warranty and repair costs for car manufacturers and their suppliers.