What is conformal coating and what is conformal coating

Conformal coating is a specially formulated coating used to protect circuit boards and their related equipment from the environment.

It has good resistance to high and low temperatures. After curing, it becomes a transparent protective film, which has superior insulation, moisture-proof, leakage-proof, shock-proof, dust-proof, anti-corrosion, anti-aging, corona resistance and other properties.

The role of conformal coating is to protect the circuit board and its related equipment.

Conformal coating is mainly "dustproof, moisture-proof, mildew-proof", but the role of conformal coating is far more than three.

Schnex conformal coating is a specially formulated advanced material used to protect printed circuit boards and their related equipment from the environment. Conformal coating has good high and low temperature resistance, and it becomes a transparent protective film after curing, which has superior insulation, moisture-proof, leakage-proof, shock-proof, dust-proof, anti-sulfurization, anti-salt spray, anti-corrosion, anti-aging, corona resistance and other properties.

According to the requirements and focus of each use environment area and each use unit, the conformal coating also has many names, such as: electric anti-glue, conformal paint, moisture-proof glue, insulating glue, moisture-proof paint, protective paint, protective paint, coating glue, coating glue, waterproof glue, moisture-proof oil, three-proof oil, three-proof agent, protective agent, moisture-proof agent, conformal coating, conformal coating, common coating, English name conformal coating. At the same time, conformal coating is also called PCB electronic circuit board protective oil, coating oil, moisture-proof paint, three-proof coating, waterproof glue, insulating paint, anti-corrosion paint, anti-salt spray paint, dustproof paint, protective paint, coating paint, three-proof adhesive, etc., the PCB circuit board that has used the three-proof coating has waterproof, moisture-proof, dust-proof "three-proof" performance and cold and thermal shock resistance, aging resistance, radiation resistance, salt spray resistance, ozone corrosion resistance, vibration resistance, good flexibility, strong adhesion and other properties.

In fact, no matter what kind of alternative name, the definition of conformal coating should actually be renamed so far, because it is not important which conformal coating is, the important thing is whether it can play a more protective role in the electronic circuit board.

Conformal paint refers to moisture-proof, salt-spray-proof and mildew-proof. Conformal coating is mainly used to protect circuit boards and related equipment from environmental erosion, because of the special formula of conformal coating coating, different from its ordinary glue, conformal coating has good high and low temperature resistance, after a period of time after the surface will form a transparent protective film, in many extreme or harsh environments can continue to protect circuit boards and other equipment.

In real life, the circuit board in the chemical, vibration, high dust, salt spray, humidity and high temperature environment, it is easy to produce corrosion, softening, deformation, mildew and other problems, because the circuit board itself is not the material of the leakage cavity is not strong protection, in the harsh environment or the use of a long time back shirt will lead to the circuit board failure, at this time the use of conformal paint can be a good protection of the circuit board.

Conformal coating has many properties, such as insulation, moisture-proof, anti-leakage, shockproof, dust-proof, anti-corrosion, anti-aging, corona resistance, etc., because of the superior combination of conformal coating performance, it is a perfect product to protect PCB circuit boards.

The use of conformal coating can protect the circuit from damage to a greater extent, improve the reliability of the circuit board, increase its safety factor, and ensure its service life. In addition, because the conformal coating prevents leakage, it allows for higher power and closer PCB spacing. This makes it possible to achieve the purpose of miniaturizing components.

Common coating is also known as: coating glue, three-proof adhesive, moisture-proof adhesive, protective paint, three-proof coating, English: conformal coating, in fact, the common name of common lamination, is "three-proof coating" (moisture-proof, anti-salt spray, anti-mildew).

The common coating is a very thin protective layer for electronic circuits and components, which can enhance the moisture-proof and anti-fouling ability of electronic circuits and components to prevent solder joints and conductors from being eroded, and can also play a role in shielding and eliminating electromagnetic interference and preventing short circuits in the circuit, and improve the insulation performance of the circuit board. In addition, the coating protects the wiring and solvent resistance of circuits and components, and relieves the stress of veterans caused by periodic changes in volcanic temperatures.

Under realistic conditions, such as chemical, vibration, dust, salt spray, humidity and high temperature, the circuit board may have corrosion, softening, deformation, mildew and other problems, resulting in circuit board failure. Through the application of conformal coating, a layer of insulation and moisture-proof protection is formed, dust and particles are fixed to avoid short circuits, encapsulated components reduce contact with the environment and block corrosion, and metal contacts in electronic devices are protected from environmental damage, so that the product can be used in harsh environments without affecting its operation and signal.

2. Types and selection of conformal coatings.

Conformal coating (common lamination) can be divided into four categories from the chemical composition: acrylate, silicone, polyurethane and nano. In terms of curing methods, there are solvent-based curing, room temperature curing, thermal curing and ultraviolet curing and other options.

1. Solvent-containing acrylate (the most widely used in the market at present).

It has the characteristics of surface drying, fast curing time, good three-proof, cheap, transparent color, flexible texture and easy repair. Xinwei G50 universal PCB circuit board conformal adhesive.

Xinwei 70 sprayed type circuit board conformal coating.

Xinwei 73 flame retardant circuit board moisture-proof oil.

2. No solvent acrylates.

UV curing, can dry in a few seconds to a dozen stopwatches, the color is transparent, the texture is hard, and the chemical resistance and abrasion resistance are also very good.

SINWE360 UV PCB Coating Adhesive.

3. Nano series.

It can be cured at room temperature or heating, with low odor and fruity aroma, with excellent high and low temperature resistance, aging resistance, corrosion resistance and electrical properties, and is currently the first nano protective coating in China.

sinwe120 nano conformal coating.

4. Polyurethane.

The texture is brittle and has excellent solvent resistance. In addition to superior moisture-proof performance, it is also stable in low temperature environments.

SINWE145 Polyurethane Conformal Coating.

5. Silicone.

The soft elastic coating material can relieve pressure well, withstand high temperature of 200 degrees, and is easy to repair.

SINEVERE500 silicone coating adhesive.

Xinwei (Guangdong) conformal paint **** provides.

Baoshan Water Paint Guidance: Conformal coating is a specially formulated coating used to protect circuit boards and related equipment from environmental erosion. Conformal coating has good high and low temperature resistance; After curing, it becomes a layer of protective film that penetrates the brother, which has superior insulation, moisture-proof, leakage-proof, shock-proof, dust-proof, anti-corrosion, anti-aging, corona resistance and other properties.

Baoshan water-based paint has long been committed to the research and development and manufacturing of green ecological furniture paint and decorative paint and other products. The products under Baoshan Paint cover wood paints (water-based wood paints, water-based UV paints, water-based PU paints), plastic paints, architectural coatings and related supporting various colorants, thinner series and resins and other products, which can provide excellent coating effects and color experience for consumers in various fields of home.

Conformal paint, in fact, is a kind of paint, and it is a special beam barrier paint. As at present, conformal coatings are paints made from special formulations. But for this paint, it's not the paint that is suitable for my scumbags' home improvements.

Instead, it should be used in some places with special requirements. The most commonly used objects of conformal coating are actually circuit boards, as well as some equipment. This is due to the fact that the conformal coating has very good resistance to high and low temperatures.

In addition, the conformal coating can form a transparent protective film after curing, and the protective film has a series of excellent properties such as superior insulation, moisture-proof, anti-leakage, shockproof, dust-proof, anti-corrosion, anti-aging, etc.

The most common brand of conformal coating in China: DeepBlue Aifa; Osborne; Keyida; Big head Gong and other brands.

Deep Blue loves conformal coating.

The "three proof" in conformal paint refers to waterproof, moisture-proof and anti-corrosion. Waterproof gradeThe waterproof grade of the electronic measuring instrument reflects the moisture-proof and dust-proof ability of the instrument, especially for the outdoor activities, inevitably in the harsh environment of high humidity or dusty sand, the sealing and waterproof ability of the instrument is very important to ensure the safe operation and life of the instrument. <

The "three proof" in conformal paint refers to waterproof, moisture-proof and anti-corrosion. Waterproof GradeThe waterproof level of the electronic measuring instrument reflects the ability of the instrument to prevent clumps and dust, especially for outdoor activities, it is inevitable to be in the harsh environment of high humidity or dusty sand, and the sealing and waterproof ability of the instrument is very important to ensure the safe operation and life of the instrument.

The first prevention refers to moisture-proofThe second prevention refers to mildew preventionThe third prevention refers to the prevention of salt spray. Conformal coating has a variety of names according to the requirements and focus of each region and each manufacturer, such as conformal coating, moisture-proof coating, conformal coating. Conformal coating is a specially formulated coating used to protect the printed circuit board and its related equipment from the erosion of the silver impermeability, so as to improve and extend their service life and ensure the safety and reliability of use.

Conformal paint is also called PCB electronic circuit board protective oil, coating oil, waterproof glue, insulating paint, moisture-proof paint, three-proof coating, anti-corrosion paint, anti-salt spray paint, dust-proof paint, protective paint, coating paint, three-proof adhesive, etc., the PCB circuit board that has used the three-proof coating has waterproof, moisture-proof and dust-proof"Three-proof"Performance and cold and thermal shock resistance, aging resistance, radiation resistance, salt spray resistance, ozone corrosion resistance, vibration resistance, good flexibility, strong adhesion and other properties, therefore, the application is very wide.

The most affordable primary conformal coating is only used in the high-tech field of printed circuit boards. As electronic devices are more and more widely used in daily life, consumers are now more and more concerned about the quality and reliability of products.