After the electronic products are manufactured, they often need another potting process to isolate them from the outside world, so as to improve the shock resistance and waterproof performance of electronic products, prevent electronic components from being eroded by the natural environment, and prolong the service life of electronic products. . At present, there are many kinds of potting materials used to pour in electronic components, and the most commonly used materials are: polyurethane materials, epoxy resin materials and silicone materials. Among them, the potting compound made of silicone is the most used, which is widely used due to various excellent characteristics.
Organosilicon polymer materials have unique weather resistance, aging resistance, excellent high and low temperature resistance, good hydrophobicity, mechanical properties, electrical insulation, etc. due to the special silicon-oxygen bond main chain structure, so they are widely used in electronics. Potting protection of electrical components.

Properties of Silicone
1) With excellent high and low temperature resistance, the cured silicone potting compound still maintains elasticity even if it withstands thermal shocks between -60°C and 200°C. 2) No heat absorption or heat release during curing, no shrinkage after curing, no impact on electronic components, and good bonding performance. 3) It has excellent electrical properties and insulation properties, and has no corrosion to materials. 4) Strong thermal conductivity, effectively improving the heat dissipation capacity of electronic products. 5) It can be cured at room temperature or by heating, and it is easy to operate. Common two-component addition molding silicone rubber potting compound: it consists of vinyl-terminated silicone oil as the base rubber, hydrogen-containing silicone oil as the crosslinking agent, and aluminum oxide (AI2O3) as the thermally conductive filler. You can add methacryloxypropyltrimethoxysilane (KH570) as coupling agent and platinum catalyst (PL-2600) as catalyst.
 
Silicone gel material has become an indispensable sealing material in the field of electronic devices (such as LED display, IGBT packaging, etc.) because of its excellent temperature resistance, waterproof, electrical insulation properties, colorless and transparent, and not easy to yellow. .


About vinyl silicone oil, please check the details:
https://www.siliconefoam.net/product-side-chain-vinyl-silicone-oil-iota-272-.html