PCB News - What effect does the three anti-paint play on the circuit board

What effect does the three anti-paint play on the circuit board
At present, the country has higher and higher requirements for environmental protection and greater efforts in link governance. This is a challenge but also an opportunity for PCB factories. If the PCB factory is determined to solve the problem of environmental pollution, then FPC flexible circuit board products can be at the forefront of the market, and the PCB factory can get the opportunity to develop again.
"Three-proof paint" is actually the common name for common film. Three-proof refers to the functions of moisture-proof, salt spray and anti-static. Three anti-paints are used on electronic circuit boards and components, which can enhance the moisture-proof and anti-pollution ability of electronic circuit boards and components and prevent corrosion of solder joints and conductors. It can also shield and eliminate electromagnetic interference and prevent short circuit of circuit boards. Function to improve the insulation performance of the circuit board. In addition, the Osbon coating protective film is also conducive to the wear resistance and solvent resistance of the circuit and components, and can release the pressure caused by the periodic change of temperature.

The main purpose of the overcoating of the three anti-paint is to reduce the decline of the electronic operation performance to the minimum, or to eliminate it when it may be affected by the unfavorable factors of the operating environment. No three-proof paint can completely resist the adverse effects of the surrounding; most of the unfavorable effects are cumulative, and will eventually make the protective effect of the three-proof paint ineffective. If the three anti-paint can maintain its effect for a satisfactory period of time, it can be deemed to have achieved its coating purpose.
The coating should be at least 0.1 mm, so that the coating film can protect the circuit board from various chemicals, salt spray, humidity, electrical insulation, dust, vibration, high and low temperature and other harsh environments. Thereby improving the reliability of the circuit board, increasing its safety factor, and ensuring its service life. In addition, the three-proof paint can also prevent leakage, so it allows higher power and closer printed board spacing, which can meet the purpose of component miniaturization. Osbon three-proof paint is composed of acrylic ester and organic silicon. Four categories: polyurethane and epoxy resin. It is widely used for circuit boards and related equipment to protect them from environmental erosion, thereby improving and prolonging their service life, ensuring the safety and reliability of use. iPCB is happy to be your business partner. Our business goal is to become the most professional prototyping PCB manufacturer in the world. With more than ten years of experience in this field, we are committed to meeting the needs of customers from different industries in terms of quality, delivery, cost-effectiveness and any other demanding requirements. As one of the most experienced PCB manufacturers and SMT assemblers in China, we are proud to be your best business partner and good friend in all aspects of your PCB needs. We strive to make your research and development work easy and worry-free.
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