PCB board coating is a crucial process in the manufacturing of printed circuit boards, providing essential protection and enhancing performance. Various types of coatings are applied to PCBs, including solder mask, conformal coating, and plating. Solder mask is a thin layer of polymer that insulates and protects copper traces from oxidation and short circuits. Conformal coating offers additional protection against moisture, dust, and chemicals, extending the PCB’s lifespan in harsh environments. Plating processes, such as ENIG, HASL, or OSP, protect exposed copper and improve solderability. These coatings not only safeguard the PCB from environmental factors but also enhance its electrical performance, reliability, and durability, making them essential in modern electronics manufacturing.



