For the purpose of this article as it relates to the manufacture of printed circuit boards, the definition of flow rate (cubic centimeters/second) will be as follows: the volume of conformal coating (cc) dispensed in a certain period of time.

Conformal coating thickness is one of the most important characteristics to ensure long-term reliability of your electronics.

The PCB industry continues to evolve with ever increasing demands for efficiency and manufacturing cost reductions. From the design phase onward, suppliers and contract manufacturers are being asked by their OEM overlords for increased performance at lower and lower costs.

Selecting a conformal coating is not simply a purchasing decision; it is a strategic engineering choice that impacts your Total Cost of Ownership and long-term reliability.

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.