PCB white oil – functions and advantages

PCB White Oil Functions and Advantages

PCB white oil, also known as PCB board surface coating protective paint, is a transparent organic coating with good insulation properties. It forms a protective film by coating on the surface of the PCB board, which plays a role in protecting the circuit board, preventing oxidation and corrosion, and isolating dust.

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    Functions of PCB white oil

    First, PCB white oil can provide good insulation protection.

    PCB White Oil
    PCB White Oil

    In electronic equipment, PCB boards carry numerous electronic components, and a certain degree of electrical isolation is often required between these components. The coating of PCB white oil can form an insulating protective film, effectively isolating the electrical connection between components and avoiding problems such as short circuits.

    Secondly, PCB white oil can prevent oxidative corrosion.

    The surface of the PCB board is easily affected by oxidation when exposed to the air, causing the metal material to lose its conductive properties and even damage the circuit. The white oil coating can form a protective layer to isolate the air from direct contact with the PCB board, effectively preventing the occurrence of oxidation corrosion and extending the service life of electronic equipment.

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

    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 to effectively isolate the external environment from corroding the PCB board, reduce dust deposition and moisture penetration, and improve the reliability and stability of electronic equipment.

    Advantages of PCB white oil

    First of all, PCB white oil application is simple and convenient.

    Compared with other protection measures such as packaging, housing, etc., the white oil coating process is more flexible, does not require changes to the original circuit design, and does not increase too much weight and volume.

    Secondly, PCB white oil has good transparency and repairability.

    Since white oil is a transparent organic coating, the surface condition of the PCB board can be clearly observed, which facilitates later maintenance and inspection. At the same time, if there is a problem with the PCB board, PCB white oil can also be repaired through repair coating, reducing the impact on the entire circuit.

    Therefore, white oil covered by PCB boards plays an important role and advantage in the electronics industry. It not only provides good insulation protection to prevent oxidation and corrosion, but is also dust-proof and moisture-proof, extending the service life of electronic equipment. Compared with other protective measures, PCB white oil has the advantages of simple and convenient application, good transparency, and strong repairability. Therefore, the rational use of PCB white oil is very important in the manufacturing and maintenance of electronic equipment.

    How thick should PCB white oil be?

    According to the standards of the International Electrotechnical Commission (IEC), the thickness of white oil on the PCB board should be between 25-35 microns. This range is to ensure that the white oil can effectively protect the surface of the circuit board without negatively affecting the electrical performance of the circuit board. In addition, it is important to note that the thickness of PCB white oil will also be affected by the specific application and requirements. 

    How thick should PCB white oil be
    How thick should PCB white oil be

    For example, for high-frequency PCBs, the thickness of white oil may have more stringent requirements to ensure the signal transmission quality of the circuit. Therefore, in practical applications, it is necessary to adjust and select the appropriate PCB white oil thickness according to specific conditions.

    FAQ-about PCB

    PCB white oil, also known as PCB board surface coating protective paint, is a transparent organic coating with good insulation properties. It forms a protective film by coating on the surface of the PCB board, which plays a role in protecting the circuit board, preventing oxidation and corrosion, and isolating dust.

    1. PCB white oil can provide good insulation protection.
    2. PCB white oil can prevent oxidative corrosion.
    3. PCB white oil also has the function of preventing dust and moisture.
    1. PCB white oil application is simple and convenient.
    2. PCB white oil has good transparency and repairability.
    3.  
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