The role of three-proof paint

The development of science and technology leads our lives, and the application of electronic devices is highlighted in various fields such as household appliances, office equipment, automotive electronics and even aerospace, and conformal coating is the key to ensuring the safe and stable operation of electronic devices.

As a veteran enterprise in the field of adhesives in the electronics industry, Schneiders has a good reputation in the industry with its self-developed conformal paint products and adhesive technology solutions. This article will delve into the role of conformal paint, and analyze and understand the role and application fields of conformal paint in detail for colleagues in the electronics industry.

Specific application examples of conformal coatings in different electronic devices are worth exploring. For example, in the field of automotive electronics, the internal environment of the car is complex, with large temperature fluctuations and factors such as vibration and dust. The use of conformal paint with anti-vibration, high and low temperature resistance and dustproof performance can effectively protect the automotive circuit board and ensure the stable operation of the automotive electronic system.

In the aerospace field, the space environment is extreme, and conditions such as high radiation, vacuum, and rapid temperature changes place extremely high demands on electronic equipment. At this time, conformal paints with anti-aging, chemical resistance, and high and low temperature resistance play a huge role. After the circuit board in aerospace equipment such as satellites and spacecraft is coated with conformal paint, it can resist the harsh space environment and ensure the normal operation of the equipment during long-term missions.

What is conformal paint? In the early days, most electronic devices will be affected by moisture, dust, mold, and the coating on the circuit board is mainly to protect these three types of substances, so it is called "conformal paint", also known as conformal adhesive, electric anti-adhesive, PCB conformal coating, etc.

With the increase in the application fields of electronic devices, the protective properties of conformal coatings are more comprehensive, and they can resist more environmental factors, such as chemical corrosion, vibration, high dust, salt spray, humidity and high temperature, etc. According to the chemical composition, conformal paint materials can be divided into acrylate, silicone and polyurethane, etc. According to different curing methods, it can also be divided into solvent-based curing, room temperature curing, heat curing and UV curing and other conformal paints. In the field of consumer electronics, such as smartphones and tablets, these devices are often affected by the user's environment, such as sweat (salt), dust, etc. Conformal coatings that are resistant to salt spray, dust, and moisture can improve the durability of these devices, prevent failures caused by environmental factors, extend product life, and enhance user experience.

What is the conformal paint? The principle of conformal paint is to isolate the invasion of various harsh environments by forming a transparent protective film, reduce the corrosion, softening, deformation and other problems caused by it to the circuit board, improve the reliability and safety of the circuit board, and extend the service life of electronic equipment.

The three-proof of conformal paint refers to moisture-proof, dust-proof, and mildew-proof.

Moisture proof Moisture proof is to prevent humid air from eroding the circuit board and reduce the risk of corrosion and short circuit caused by moisture.

In humid environments, especially in southern regions, water vapor can easily invade the interior of electronic devices, leading to failures such as moisture corrosion, mold, or short circuits. After the surface of the circuit board is coated with conformal paint, by forming a tight protective film, it can effectively isolate the direct contact between moisture and the circuit board, preventing moisture from invading the circuit board. This not only protects the integrity of the circuit board but also ensures the stable operation of electronic equipment and improves the service life of the equipment.

Dust protection Dust protection refers to preventing dust, dirt, and other tiny particles from adhering to the surface of the circuit board, affecting the performance of electronic devices.

Dust and dirt are common sources of pollution in electronic devices, dust not only affects the appearance and cleanliness of the equipment, but may also invade the inside of the equipment and cause damage to components, which not only affects the conductivity of the circuit board, but also may lead to short circuits and failures. By forming a smooth protective film, conformal paint can not only reduce the adhesion of dust, keep the circuit board clean, but also have good wear resistance, can resist the damage caused by mechanical friction to the circuit board, and can also protect the scratch of particulate matter, greatly reduce equipment failures caused by dust, and improve production efficiency.

Mold

Mold prevention Mold prevention refers to preventing mold and mildew from growing on the surface of the circuit board, especially in humid and temperature-friendly environments.

Mold is a common source of microbial pollution in life, they can grow and reproduce rapidly in a humid and temperature-friendly environment, and can also breed on the surface of the circuit board. Mold growth not only leads to corrosion and degradation of the circuit board surface, but can also produce harmful metabolites that can seriously affect the performance of electronic devices. The protective film of conformal coatings creates a tight vacuum zone that prevents moisture and airborne contaminants from coming into contact with the board, inhibiting the conditions required for mold growth. Moreover, conformal paints have temperature resistance, which can maintain their protective properties even in environments with large temperature changes, avoiding the accumulation of condensation caused by temperature changes.

With the continuous improvement of the performance and demand of conformal paint, conformal paint is more than three proof! In addition to the three main functions of moisture-proof, dust-proof, and mildew-proof, conformal paint also has a variety of other additional functions, such as: anti-salt spray, anti-vibration, chemical corrosion resistance, high and low temperature resistance, anti-aging and anti-yellowing, etc., which make conformal paint widely used in more fields and more complex environments, providing more comprehensive and reliable protection for electronic devices.

Conclusion Although there are many roles of conformal paint, in practical applications, different materials of conformal paint should be selected according to different electronic devices to achieve optimal protection.

When choosing a conformal paint, different curing methods should be considered. If you are looking for production efficiency, you can choose fast-curing acrylate conformal paint or UV-curable conformal paint; For electronic equipment with temperature requirements, conformal paint cured at room temperature can be selected; For large-scale production, heat-curing conformal paints can be considered, which have fast curing speed and stable performance after curing.

In short, the importance of conformal paint, as a key material for protecting electronic devices, cannot be ignored. As an innovative enterprise in the electronic adhesive industry, Schneith will continue to be committed to the research and development and innovation of conformal coating technology, providing more efficient, environmentally friendly and customized solutions for the electronics industry, helping electronic equipment operate stably in complex and changeable environments, and promoting scientific and technological progress and industrial upgrading.

From these application cases, it can be seen that it is crucial to accurately select the appropriate conformal paint according to the working environment and performance requirements of different electronic devices. Only in this way can conformal coatings give full play to their role and provide all-round and multi-level protection for electronic devices, so as to ensure the stable and efficient operation of electronic devices in their respective application scenarios, which further reflects the great significance of companies like Schneifers in the research and development and promotion of conformal coating technology.