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What are the advantages of thermally conductive gels?

The most serious problem with thermally conductive silicone grease is the precipitation of silicone oil after long-term use. The precipitation of silicone oil causes short-circuit failure of the surrounding electronics, while the thermal conductivity
decreases dramatically.

Thermally conductive gaskets have a long service life, but have a high thermal resistance and require a high working pressure.Thermally conductive gels combine the advantages of both thermally conductive silicone grease and thermally 
conductive gaskets, while avoiding the disadvantages of both. A thermally conductive gel is a silicone grease that has been mixed with high thermal conductivity particles (e.g. aluminium oxide, silver powder, etc.) and then cross-linked 
with low molecular siloxane through a heat treatment process to form a gel.

Thermally conductive gels are gel-like substances between liquid and solid. They are characterised by recoverable shape, strong material cohesion, high heat resistance and good long-term thermal stability, but also, like thermally conductive
silicone greases, have extremely low thermal resistance, can fill voids and have high adhesion.

The main difference between thermally conductive gel and thermally conductive silicone grease is that thermally conductive gel does not produce silicone oil precipitation and the gel can be torn off and reused. Thermally conductive gels

require only a low working pressure, typically less than 10 psi, when connected to heat sinks and chips, are low in stiffness, easy to bend and have a very wide working temperature range.

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