Silicone gel is a special kind of silicone rubber, which is composed of liquid and solid called "solid-liquid co-existing material". This structure consists of a network of polymer compounds that exhibit unique properties due to their interaction. Silicone gel is generally divided into A and B two components before curing. Under the catalysis of the catalyst metal platinum compound, the vinyl group (or propylene group) on the silicone adhesive and the silane group on the crosslinking agent molecule undergo addition reaction. No by-products are produced during the entire reaction process, so no shrinkage occurs during the entire vulcanization process.

Main features of silicone gel

1, the physical and chemical properties are stable, not affected by temperature, can be used in a wide temperature range (65℃-200℃), with excellent electrical insulation and high and low temperature resistance (-50℃ ~ 200℃).

2, the system is colorless and transparent, the adhesive curing is semi-solidified state, the adhesion and sealing performance of many substrates is good, it can be convenient to observe the internal structure of the potting component when it is used as a potting material, and has excellent thermal resistance.

3, the two components will not gel quickly after mixing, so there is a long operable time, once heated will soon cure, curing time can be freely controlled. Good fluidity and good self-leveling, can be injected into the micro components of the integrated circuit nuances.

4. Silicone gel can physically adhere to the surface of most common electronic devices or other materials without adding adhesive additives or spraying binder on the bonding surface before curing, and there is no by-product generation and no shrinkage during curing.

5, good self-healing ability, gel can heal automatically after external force cracking, also play the role of waterproof, moisture-proof, does not affect the use of effect. It can meet the replacement of the components of the potting assembly and the line detection of the metal probe.

6, according to the application needs, the fluidity, hardness, curing time and other properties of the product can be regulated, and some fillers can be added to prepare conductive and thermal silicon gel.


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