Under what circumstances does the silicone gasket need back glue?

Some customers need to add back glue in the process of purchasing thermal conductive silicone gasket, but no matter the back glue on one side both sides will increase the thermal resistance, thus reducing the overall thermal conductivity effect, what situation must we add back glue to the thermal conductive silicone gasket?

The back glue is a good solution for the heat conduction silicone gasket, but the biggest disadvantage is that it will increase the thermal resistance affect the heat conduction effect. However, in the following cases, the back glue needs to be added to ensure the normal use of the heat conduction silicone gasket:

Large assembly area:

Although the thermal silicone gasket has its own viscosity, it is easy to fall off during assembly due to the large assembly area of the product, but it can be fixed if one side is backed by a layer of glue, the thermal silicone gasket will fall off. It can be stable on the device mounting surface.

Assembly position:

Some customers do assemble the thermal conductive silicone gasket in the horizontal plane as usual, which may be the vertical plane the inclined plane. In this case, the thermal conductive silicone gasket is greatly affected by the gravity, it is easier to fall off, so at this time, it also needs to use the single side back glue, which also plays a fixed role.

The gap between heat source radiator is large:

When the gap between the heat source the radiator is large, the thickness of the thermal conductive silicone gasket used will be slightly larger, which will increase the weight of the silicone film, it will fall off easily when it is flat, so in this case, the single-sided back glue will also be selected to fix the thermal conductive silicone gasket.

Assembly parts are smooth tidy:

The surface of some devices is very smooth, so it is easy to fall off when the heat-conducting silica gel gasket is installed on it. At this time, if one side is backed by a layer of glue, the position of the heat-conducting silica gel gasket will move, it can also play a fixed role.

Generally speaking, the heat conduction silicone gasket with back glue will affect the heat conduction effect, but in order to play a fixed role, it is necessary to use back glue, so as to ensure the normal use of the heat conduction silicone gasket.