Contrary to what most people think bubbles are not material related, bubbles are mostly caused by process related issues. Yes, it is true that the conformal coating contents would influence in having more or less bubbles. Solvents will definitively generate bubbles if the process is not properly set but that is not all!

UV curing of conformal coatings can appear to be a complicated topic, however, a few simple steps will help to correctly set up your production process.

The dyne level, often expressed in dynes/cm (dyn/cm), is a measure of surface energy, with higher values indicative of a material's wettability.

Automotive electronics live across very different environments, from in-cabin controls to ADAS modules, under-hood assemblies, and power electronics. The right conformal coating choice depends on the dominant stressors: thermal cycling, vibration, contaminants, chemical exposure, serviceability, and inspection requirements.

Cleaner, faster PCB protection with solventless DOWSIL™ CC 8000 Series UV dual cure conformal coatings