Firstly, white oil can provide good insulation protection.

　　In electronic devices, PCB boards carry numerous electronic components, which often require a certain degree of electrical isolation between them. The coating of white oil can form a layer of insulation protection film, effectively isolating the electrical connection between components and avoiding the occurrence of circuit short circuits and other problems.

　　Secondly, white oil can prevent oxidation and corrosion.

　　The surface of PCB boards is easily affected by oxidation when exposed to air, leading to the loss of conductivity of metal materials and even damage to circuits. The coating of white oil can form a protective layer that isolates air from direct contact with the PCB board, effectively preventing oxidation and corrosion, and extending the service life of electronic devices.

　　In addition, white oil also has the function of dust and moisture prevention.

　　In practical applications, PCB boards are often affected by external environments such as dust and moisture. The coating of white oil can form a physical barrier, effectively isolating the external environment from erosion of PCB boards, reducing dust deposition and moisture infiltration, and improving the reliability and stability of electronic equipment.

　　So, what are the advantages of white oil compared to other protective measures?