Three anti-paint is a specially formulated coating to protect the circuit board and its related equipment from the environment. The three anti-paint has good resistance to high and low temperature; it cures into a transparent protective film, such as in the case of chemicals (eg fuel, coolant, etc.), vibration, moisture, salt spray, humidity and high temperature. Protect circuits from damage. Under these conditions, the circuit board may be corroded, mold growth and short circuit, etc., with superior insulation, moisture, leakage, dust, corrosion, anti-aging, anti-mold, anti-part loose and insulation corona resistance. .
"Three anti-paint" is actually the common name of the common film, the three defenses are: moisture, salt spray and anti-static function. The three anti-paints are used on electronic circuit boards and components to enhance the moisture and pollution resistance of electronic circuit boards and components, and to prevent solder joints and conductors from being corroded. It can also shield and eliminate electromagnetic interference and prevent short circuit of circuit boards. Function to improve the insulation performance of the circuit board. In addition, the Osbourne protective film also contributes to the wear and solvent resistance of the lines and components, and releases the pressure caused by periodic changes in temperature.
The purpose of the three-coating coating is to minimize the degradation of the electronic operating performance or to eliminate it when it is likely to be affected by unfavorable operating conditions. No three anti-paint can completely resist the adverse effects of the surrounding; most of the adverse effects are cumulative, and eventually the protection of the three anti-paints will be invalid. If the three anti-paint can maintain its effect for a satisfactory period of time, it can be considered as its coating purpose.
The coating is at least 0.1 mm so that the coating protects the board from harsh environments such as various chemicals, salt spray, moisture, electrical insulation, dust, vibration and high and low temperatures. Thereby improving the reliability of the circuit board, increasing its safety factor and ensuring its service life. In addition, the three anti-paint can also prevent leakage, thus allowing higher power and closer board spacing, which can meet the purpose of component miniaturization. Osborne three anti-paint is composed of acrylate and silicone. There are four major categories of polyurethane and epoxy resin. Widely used in circuit boards and related equipment to protect them from the environment, thereby increasing and extending their service life, ensuring the safety and reliability of use.
Circuit board three anti-paint benefits1, protection circuit board
The protective film formed by the three anti-paint on the circuit board can effectively isolate the circuit board and protect the circuit from the erosion and damage of the harsh environment, thereby improving the reliability of the circuit board, increasing its safety factor and ensuring its service life.
2, to achieve higher board integration
In addition, because the three anti-paint can prevent leakage, it allows higher power and closer board spacing, which can meet the purpose of component miniaturization.
3, modify the appearance of the circuit board
Whether transparent or with a three-pig paint, the appearance of the printed circuit board can be improved, while the latter guarantees a higher degree of confidentiality by covering the components and designing the layout.
4. Insulate the tin feet between the circuit boards to prevent leakage, short circuit, etc.
5. Protect the tin spot on the surface of the circuit board from being oxidized by air to make it more beautiful, prevent dust from obstructing and affect the normal operation of the circuit board.
1. HumiSeal Simi Chemical
Humiseal, the US three anti-paint brand, the three anti-paint leader brand, is a three-proof paint company specializing in the production of waterproof, moisture-proof, mildew-proof and anti-corrosion for electronic circuit boards. Humiseal's main products are acrylic (acrylic) resin three anti-paint, urethane resin three anti-paint, synthetic rubber three anti-paint and silicone resin three anti-paint four major categories. The representative models of acrylic resin three anti-adhesive are 1B31, 1B73, 1B73EPA, 1B66, 1B66NS, 1B66NSLU; the representative products of polyurethane anti-adhesive are 1A20, 1A27, 1A33; the representative model of synthetic rubber three anti-adhesive is 1B51 , 1B51NS, 1B51NSLU; its main products of silicone resin three anti-adhesive are 1C49, 1C49LV, 1C51, 1C55.
Second, DOC CORNING Dow Corning
DOC CORNING, the US three anti-paint brand, since the establishment of the company is committed to the development of silicone potential, is the benchmark for silicone three-proof paint, three anti-paint representative products DC1-2577, DC1-2577Low Voc, DC3-1953, DC3- 1753 and DC3-1965, have excellent weather resistance and significant protection. Its leading products are thermal paste, adhesive and potting glue, and the application is also very extensive.
Third, ShinEstu Shin-Etsu
ShinEtsu Shin-Etsu Chemical, a Japanese brand company, has achieved tremendous results in the research and production of the highest quality silicone products in the world since its establishment in 1926. Its three anti-paint representative products are: KR-251, KE3495 and KE-45-TS. In addition, the RTV silicone, thermal silica gel, thermal grease, silicone potting compound and other products developed by Shin-Etsu have been widely used in circuit boards, communication equipment, meters, TV receivers, rust-proof and outdoor electric meters in cold regions. In the electronic products, it is recognized by the majority of users.
Fourth, Momentive Momentu
Momentive is the world's second largest producer of silicone products and related products. The entire company's product line is based on silicone; all products are UL94V-0 certified, in line with US military standards, which represent three anti-paints. : TSE3221S, ECC3020H, ECC3050S. In addition, Momentive's products include RTV silicone, thermal grease, and UL flame retardant adhesive, which are widely used in construction, transportation, personal care, electronics, consumer goods and agriculture.
Five, HenKel Henkel
Henkel began to produce adhesives in 1922. Its well-known brands include Loctite Loctite, Hanxin Hanxin, Hysol, etc., which mainly produce civilian adhesives. Its business scope includes the production and sale of various anaerobic sealants and industrial Sealant and related cleaning agents, accelerators and other products. Three anti-paint production is less, representative products are hysol PC18, PC20.
Six, PETES
Peters is a world-renowned manufacturer of applied materials for the PCB industry. It is also a specialized company that produces both circuit board manufacturing related materials and three circuit paints after assembly of circuit boards. It has a synergistic effect in certain industrial chains. Technical advantage. Its products are widely used in automotive electronics, consumer electronics, photovoltaic products, industrial control systems, industrial power supplies, inverters, communication electronic systems, LED optoelectronics, medical equipment, household appliances, military products, aerospace and marine electronics, etc. Products are SL1397, DSL1600E-FLZ/75, SL1307FLZ/23 and so on.
Seven, ELECTROLUBE easy to high
The most famous brand in the UK, the main anti-paint and thermal paste products, the current high-strength three anti-paint is the world's leading technology and application, and in line with international standards; now three anti-paint products include acrylic, polyurethane It is widely used in automotive, military, aerospace, marine, LED and green energy fields. It is represented by DCA, CPL, PUC and APL.
Eight, BECTRON
Germany Bectron belongs to Europe's famous ALTALA Group. It has three series of polyurethane, alkyd and epoxy resin. It is widely used in automotive electronics, industrial automation, communication, electronics, navigation and aerospace. Products are: PL1104, PL4122 and so on.
Nine, CRC
CRC Industrial Company is a multinational company specializing in the production and maintenance of chemical products. Its CRC series products are mainly used in industry, electrical and electronic industry, motor vehicle, shipbuilding and aerospace industry. Representative products have 2043 CRC circuit board transparent protective agent. It has high strength and acid and alkali corrosion resistance.
X. Cytec/Conap Cytec
The US imported brand is mainly engaged in the development of high-tech polyurethane, epoxy composite and synthetic resin series. At present, the main three anti-paints are CE-1170 and CE-1171, which are mainly used for moisture-proof insulation and salt-proofing of circuit boards and electronic parts. Fog and mildew resistance and other uses.
Looking forward to the global adhesive market, which brands of imported circuit board three anti-paints are mainly selected for these 10 major brands, of course, the specific final choice depends on the individual purchase criteria, as well as the specific process and use requirements of the products. But we always have to understand that our goal is actually only one: to buy a three-proof paint that is suitable for the product requirements, sometimes it may not be too relevant to the brand, and everyone should not be too limited to the brand fixed thinking.
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