Conformal coatings are thin-layer polymers that are applied to the surface of printed circuit boards (PCBs), with typical thickness between 25μm to 150μ, to protect and electrically insulate the circuits and board components from environmental stresses.
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Modern PCBs are smaller and more densely populated with sensitive components than ever before, especially in demanding industries such as automotive and aerospace.
A basic definition of a conformal coating is a coating, which is applied to the PCB surface and “conforms” to the various irregularities and contours of components at an even and consistent thickness.
As technology advances, Printed Circuit Boards (PCBs) are critical components in a wide range of electronic devices, from smartphones and laptops to medical equipment and industrial controls.