Why should the module circuit board be coated with the three-proof paint of the PCB circuit board?

　The circuit board three anti-paint is a kind of specially formulated paint, which is used to protect the circuit board and its related equipment from the erosion of the bad environment, thereby increasing and extending their service life, ensuring the safety and reliability of use.

The three anti-paint is applied to the surface of the circuit board to form a light and flexible film with a thickness of only 25-50 microns. This film can effectively isolate and protect the circuit from chemicals, moisture and other dirt. , Thereby improving the reliability of the circuit board, increasing its safety factor, and ensuring its service life. At the same time, because the three-proof paint can prevent leakage, it allows higher power and closer printed board spacing. Thereby, the purpose of miniaturization of components can be met. Both transparent and colored three-proof paint can improve the appearance of the printed circuit board, and the latter can also ensure a higher degree of confidentiality by covering the components and designing the layout.