What is PCB conformal coating? What is its function?
PCB conformal coating, also known as circuit board conformal coating or coating adhesive, is a specially formulated paint-type adhesive designed to protect printed circuit boards (PCBs) and related equipment from environmental factors. It forms a protective film on the PCB surface, providing multiple protective functions that enhance the PCB's reliability and service life. Key components of PCB conformal coating may include acrylic esters, silicones, polyurethanes, and nanomaterials, each offering distinct properties and application scenarios. Functions of PCB Conformal Coating The primary functions of PCB conformal coating are manifested in the following aspects: Waterproofing and Moisture Resistance: PCB conformal coating effectively prevents moisture penetration into circuit boards, safeguarding electronic components from water damage. It delivers robust waterproofing in humid environments, safeguarding circuit boards from moisture-induced electrical degradation and mater...