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Three proofing lacquer also called PCB electronic circuit board anti-corrosion coatings, moistureproof lacquer, anti-corrosion coatings, waterproof glue, anticorrosive paint, waterproof, salt fog lacquer, dustproof paint, paint, the beatles overburden paint protection, three - such as glue, had used PCB anti-corrosion paint of PCB a waterproof, moistureproof, dustproof "three proofing" performance and cold and hot shock resistance, ageing resistance, resistance to radiation, salt-fog resistant, ozone and corrosion resistance vibration, good flexibility, good adhesion, such as performance.

Moisture is for PCB's most common, the main factors of the most destructive. Excessive moisture will substantially reduce between conductors insulation resistance, accelerate high-speed decomposition, reduce Q value, and corrosion conductor. We often see PCB metal parts played aeruginosa is no coated PCB anti-corrosion paint copper with water vapour, oxygen common its chemical reaction.

And on printed circuit boards literally find hundreds of pollutants, with as destructive power. They lead to and moisture erosion caused by the same results - electronic deterioration, corrosion conductor even cause short-circuit irreparably. Most often found in electrical system of pollutants, perhaps by cheng remained on the chemical. These pollutants for example helps fire-resistant and solvent release agent, metal cubes and mark ink, and so on. Also has the main pollution group for human hands when he caused, like the human body fat, fingerprints, cosmetic and food residual scale. Operating environment also have many contaminants, such as salt spray, and sand, fuel, acid, and other corrosive steam and molds.

Will PCB anti-corrosion paint coated in printed circuit board and components, when may suffer adverse factors influence the operating environment, can reduce or eliminate the electronic operating performance recession situation. If the beatles overburden paint can maintain its function over a period of time of satisfying the use of the products, such as greater than deadlines, shall be deemed has reached its coating purposes. Even phi cladding, very thin to some extent, also can be a very good withstand mechanical vibration and swing, thermal shock, and high temperature operation. Of course, film can be used to make inserted in printed circuit board of individual component possesses the mechanical strength or sufficient insulation idea, is wrong. Components shall be in mechanical approach to stuck, and need to have their own applicable filled seam an agent, and so we have double insurance to prevent the accident from happening.