Three proof paint is a specially formulated coating used to protect circuit boards and related equipment from environmental erosion. Three proofing paint has good resistance to high and low temperatures; After curing, it forms a transparent protective film, which has superior insulation, moisture resistance, leakage resistance, shock resistance, dust prevention, corrosion resistance, aging resistance, corona resistance, and other properties.
There are various names for "three proofing paint", such as "three proofing glue", "moisture-proof glue", "insulation glue", "moisture-proof paint", "protective paint", "protective paint", "covering glue", "coating glue", "waterproof glue", "moisture-proof oil", "three proofing agent", "protective agent", "moisture-proof agent", "conformal coating", "conformal coating", and "common coating". Three proof paint is a specially formulated coating used to protect circuit boards and related equipment from environmental erosion, thereby improving and extending their service life, ensuring safety and reliability of use.
Under real-world conditions, such as chemistry, vibration, high dust, salt spray, humidity, and high temperature, circuit boards may experience problems such as corrosion, softening, deformation, and mold, leading to circuit board failures. The three proofing paint is applied to the surface of the circuit board to form a protective film (three proofing refers to moisture resistance, salt spray resistance, and mold resistance). Under conditions such as chemical substances (such as fuel, coolant, etc.), vibration, moisture, salt spray, humidity, and high temperature, circuit boards that do not use the three proof paint may be corroded, mold grows, and short circuited, leading to circuit failures. The use of the three proof paint can protect the circuit from damage, thereby improving the reliability of the circuit board, increasing its safety factor, and ensuring its service life. In addition, due to the ability of the three proof paint to prevent leakage, higher power and closer spacing between printed boards are allowed. This can meet the purpose of miniaturizing components.
2、 The function of three anti paint
The three proofing paint has a conformal coating, and the purpose of coating the protective film on printed circuit boards and components is to minimize or eliminate the degradation of electronic operating performance when it may be affected by adverse operating environment factors. No coating adhesive can completely resist the adverse effects around it; Most of the adverse effects are cumulative and ultimately render the protective effect of the coating adhesive ineffective. If the coating adhesive can maintain its effect for a satisfactory period of time, it can be considered that its coating purpose has been achieved.
Moisture is the most common and destructive environmental adverse effect. Excessive moisture can significantly reduce the insulation resistance between conductors, accelerate high-speed decomposition, reduce Q values, and corrode conductors.
The hundreds of pollutants that can be found on printed circuit boards have the same destructive power. They can lead to the same results as moisture erosion - electronic decay, corrosion of conductors, and even irreversible short circuits. The most common pollutants found in electrical systems may be residual chemicals from the manufacturing process. These pollutants include, for example, fluxes, solvent release agents, metal particles, and marking inks. There is a major pollution group caused by human carelessness during handling, such as human fats, fingerprints, cosmetics, and food residue. There are also many pollutants in the operating environment, such as salt spray, sand, fuel, acid, and other corrosive vapors and molds.
Although there are countless pollutants to list, it is comforting to note that in most cases of severe pollution, good coating can effectively prevent them.
The coating layer rarely exceeds 0.1mm. This coating film can protect the wire winding board from harsh environmental impacts such as various chemicals, salt spray, humidity, electrical insulation, dust, vibration, and high and low temperatures. Thus improving the reliability of circuit boards, increasing their safety factor, and ensuring their service life. In addition, common lamination can also prevent leakage, allowing for higher power and closer spacing between printed boards, thus meeting the goal of component miniaturization.
In short, the function of the three proofing paint is very extensive, and initially, the three proofing paint was only applied to printed circuit boards in the high-tech field. Due to the increasingly widespread application of electronic devices in daily life, consumers are now paying more and more attention to the quality and reliability of products. The use of three proof paint common coating can effectively improve product quality and reduce the warranty period failure cost for manufacturers.
In harsh environments, your board requires a protective clothing; Three proof paint, comprehensively improving the stability and service life of your board. To provide customers with high value-added three prevention solutions, when you choose Pantai, you not only receive high-quality products from Pantai, but also a business partner who works side by side to find innovative solutions for problems in the production process. Pantai Company provides a complete set of three prevention solutions from "product selection, manufacturing process, prototype testing, coating equipment, process optimization, and coating processing", bringing unique added value to customers.
