Conformal coating is generally the last step in the PCB manufacturing process and the method of protection for all those valuable functional components, but it's not always that simple. Let's look at a fairly common scenario.

Of the three main issues related to bubbles, the most common and harmful tends to be the bridging of components or leads with air or gases. If a gas bubble is large enough to actually connect or “bridge” the gap between components or leads, that means that the area between those materials is unprotected and also subject to arcing or corrosion.

Epoxy chemistry is certainly not new, and this technology has proven itself across a wide range of industries and applications.

Loctite adhesives help power tool manufacturers achieve faster assembly and long-term performance.

Preparing substrate surfaces meticulously before utilizing light-curable materials is critical to achieving reliable bonds.