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    TECHNICAL ARTICLE: The electronics industry is one of the most rapidly expanding industries to date, with endless research and introduction into new applications. Printed circuit boards (PCBs) are found in many domestic, industrial, automotive and military devices, to name but a few. In most of these applications, reliability is essential, even when the device may be subject to harsh conditions such as high humidity, corrosive atmospheres or high levels of dust or contamination. Conformal coatings can be utilised to protect the PCBs from such environments, ensuring optimum performance under the toughest conditions.