Automobiles are exposed to the elements along with chemicals on and off the road. Taking care to protect the electronic components with the proper conformal coating is essential. Parylene is a conformal coating that is applied as a chemical vapor and is know to cover even irregular surfaces tightly.
Parylene conformal coating forms an extremely thin protection layer that is unrivaled in uniformity. This superior protection fights off dust, moisture, chemicals, fumes, and extreme temperatures. Electronic components that need to be protected include:
In addition to silicone, parylene is used as a resistant coating in automotive electronics because of its durability when exposed to brake fluid, antifreeze, and other automotive chemicals such as gasoline. Silicone must be used for thermal resistance as parylene is not viable for high-temperature exposure. On the contrary, parylene exceeds silicone when it comes to cold temperature exposure. You can see why they are used tandem for automotive electronics. Other reasons parylene is used is because it is pin-hole free. Because it is applied as a vapor, the material does not pool. Instead, it coats the surface of the electronics in a thin layer and is absent of any voids.
When it comes down to it, you can’t skip out on parylene with using a conformal coating for automotive electronics. Especially as cars continue to become more and more computerized it these electronic functions will become even more essential.
For any further questions about parylene in automotive electronics, please reach out and contact us today!