With the continuous advancement and development of the adhesive/glue industry, various sectors are increasingly relying on adhesives. Their application in the field of electronic information is particularly widespread. Specifically, adhesives are used in tasks such as bonding, sealing, potting, coating of electronic components, structural bonding, co-lamination, and SMT chip mounting. The main types of adhesives employed include silicone adhesives, instant adhesives, UV-curing adhesives, and epoxy adhesives.
Among them, room-temperature vulcanizing silicone rubber or organosilicone gel, when used for potting electronic and electrical components, can provide protection against moisture, dust, corrosion, and vibration, while also enhancing operational performance and stabilizing parameter values. Moreover, before vulcanization, these materials are liquid, making them easy to pour and convenient to use. When using organosilicone gel for potting, no low-molecular substances are released, there is no stress-induced shrinkage, deep-layer vulcanization is possible, and there is absolutely no corrosion. After vulcanization, the material becomes a transparent elastomer, allowing clear visibility of the components encapsulated within the gel layer. It is even possible to puncture the gel with a needle to individually measure component parameters, facilitating inspection and repair.
Room-temperature vulcanized foam silicone rubber, used in magnetic core boards for internal memory of electronic computers, has undergone multiple tests—including vibration, impact, and alternating temperature cycles—and fully meets the required specifications. A flame-retardant potting compound based on addition-cure room-temperature vulcanized silicone rubber proves highly effective when used for molding products such as TV high-voltage caps and high-voltage cable jackets.
When sealed encapsulation is not required or when immersion and potting protection are inconvenient, a single-component room-temperature vulcanizing silicone rubber can be used as a surface-coating protective material. Typically, room-temperature vulcanizing silicone rubber is employed for surface protection coatings of electronic components, while addition-curing silicone gels are used for internal coatings. In recent years, glass-resin coatings have become increasingly widespread in the application to electronic, electrical, and instrumentation components.
