Analysis of the advantages and disadvantages of UV three-proof paint

Conformal coating is a kind of protective paint with a special formula, and UV conformal coating is an important type of conformal coating. With its unique curing method and excellent performance, it is widely used in circuit boards and related components of electronic devices. As UV conformal coating gets more attention, many people are beginning to want to know its advantages and disadvantages.

Nufil is an innovative enterprise that has been deeply engaged in the field of electronic adhesives for more than 10 years, and has a good reputation in the industry with its self-developed conformal coating products and adhesive technology solutions. Based on years of research and understanding of UV conformal coating, Nu Phil led you to deeply discuss the advantages and disadvantages of UV conformal coating to help you understand this material more comprehensively. UV conformal coating has the advantages of fast curing, high adhesion, good protective performance, good environmental protection, high transparency and easy operation, and has a wide range of application prospects in the field of electronic equipment protection. Among them, fast curing can greatly improve production efficiency; High adhesion provides reliable protection for different materials; The protective performance includes waterproof, moisture-proof, chemical-resistant and abrasion-resistant; Environmental protection meets modern needs; High transparency, suitable for equipment with high requirements for appearance; It is easy to operate and suitable for a variety of production methods. However, it also has disadvantages such as difficult to cure where there is no light, high cost, limited curing depth (special cases), and possible whitening of the coating film under certain conditions.

Advantages of UV conformal coating:

<!--[if !supportLists]-->1.<!--[endif]-->Fast curing One of the biggest advantages of UV conformal coatings is their ability to cure quickly upon exposure to UV light, usually in a matter of seconds to tens of seconds. Compared with the traditional conformal coating, it takes a longer time to dry and cure, which greatly improves the production efficiency and can meet the needs of rapid production in the modern electronics manufacturing industry. The line does not have to wait a lot of time for the coating to dry, and the advantage is that it can be operated continuously, especially in large-scale production.

<!--[if !supportLists]-->2.<!--[endif]-->High adhesion UV conformal coating has high adhesion to all kinds of circuit board substrates, plastics, glass, metals and other materials. This means that it adheres firmly to surfaces made of different materials and provides reliable protection for electronic devices. Whether it is inside complex electronic devices or on parts made of various materials, UV conformal coatings can play a good role in protection, and are not easy to peel off or peel.

<!--[if !supportLists]-->3.<!--[endif]-->Good protective performance Waterproof and moisture-proof: UV conformal coating has excellent waterproof performance, which can effectively prevent moisture from penetrating into the interior of electronic equipment and avoid short circuit, corrosion and other problems caused by moisture. For electronic devices used in humid environments (e.g. bathrooms, kitchens) or outdoor electronic devices, the water-repellent properties of UV conformal coatings provide reliable protection for the equipment. Chemical resistance: It can resist the attack of chemicals, such as acids, alkalis, solvents, etc., and can protect electronic equipment in harsh chemical environments. In the fields of chemical industry and battery production, electronic equipment is often exposed to various chemicals, and the chemical resistance of UV conformal coating can ensure the normal operation of equipment. Abrasion resistance: The cured UV conformal coating has high hardness and wear resistance, and can withstand a certain degree of friction and scratches, maintaining the finish and aesthetics of the surface of electronic devices. In daily use, electronic equipment will inevitably be subjected to some slight friction and collision, and the wear resistance of UV conformal coating can effectively protect the surface of the equipment from damage.

<!--[if !supportLists]-->4.<!--[endif]-->Good environmental protection UV conformal coating is a solvent-free or low-solvent coating, which will not volatile organic compounds (VOCs) during the construction process, and will cause less pollution to the environment. With the continuous improvement of environmental awareness, more and more enterprises and consumers have begun to pay attention to the environmental performance of products, and this characteristic of UV conformal coating makes it highly competitive in the market.

<!--[if !supportLists]-->5.<!--[endif]-->High transparency UV conformal coating has good transparency, and will not affect the appearance and color of electronic devices after application, and can maintain the original appearance of the coated object. This is important for electronic devices such as smartphones and tablets that require a high level of appearance. At the same time, the high transparency also makes it easy to observe and inspect the circuits and components inside the electronic equipment.

<!--[if !supportLists]-->6.<!--[endif]-->Easy to operate UV conformal coating can be applied by spraying, brushing, dipping and other methods, which is simple and convenient to operate, and is suitable for different types and scales of production. In addition, it can adopt the equipment spraying process, which can achieve precise control and improve the automation level of the production process.

Disadvantages of UV conformal coating:

<!--[if !supportLists]-->1.<!--[endif]-->Difficult to cure where there is no light There are some shadow areas and dead zones on the board that UV rays may not reach, which can lead to uneven curing of the coating overall. However, Nufil has independently developed the UV moisture dual-curing conformal coating CA6001 that can be UV curable and moisture curing, which can well solve the problems of UV curing.

<!--[if !supportLists]-->2.<!--[endif]-->Higher cost The price of UV conformal coating is relatively higher compared to traditional conformal coatings. This is mainly due to the fact that the formulation ingredients of UV conformal coating use more expensive raw materials, which increases the production cost. Moreover, the use of UV conformal coating requires suitable ultraviolet irradiation equipment, which is more expensive than other types of conformal coating.

Conclusion In fact, in addition to the above two shortcomings, UV conformal coating may also have the disadvantage of limited curing depth, and for some thick coatings or electronic devices with complex structures, the inside of the coating may not be completely cured. However, the coating of the circuit board is usually not too thick, so this disadvantage is basically negligible. Of course, under certain conditions (such as inappropriate temperature and excessive moisture), the coating film of UV conformal coating will appear whitening like conventional conformal coating, and paying attention to the temperature and humidity of the sizing environment can also avoid such shortcomings.

When a comprehensive understanding of UV conformal coating, the application can be based on the needs and conditions of comprehensive consideration, choose the appropriate conformal coating products and construction technology, which will help UV conformal coating to play a better protective effect. However, the UV moisture dual-curing conformal coating CA6001 developed by Nu Phil can solve some curing problems, in most cases, such as when the circuit board coating is not thick, the shortcomings of limited curing depth can be ignored, and paying attention to the sizing environment can avoid the problem of whitening of the coating film. In practice, a comprehensive understanding of its advantages and disadvantages can help to select the right product and application process according to the needs and conditions, so as to make the UV conformal coating exert the best protection effect.