Silica gel, also known as silicone rubber, is a highly active adsorption material and is an amorphous substance. Color-changing silica sol is insoluble in water and any solvent, non-toxic, tasteless, chemically stable, and does not react with any substances except strong alkali and hydrofluoric acid. Its above properties make the color-changing silica sol more and more widely used in our life. Silicone is a thermally conductive material, but its thermal conductivity is relatively low. Once cured, it is difficult to separate the bonded objects. Once glued, it is difficult to remove. Therefore, it is mostly used in some occasions that only require one-time bonding. For example, it is used on heat sinks for graphics cards and memory.

Silica sol is a kind of electronic thermal conductivity material, which is widely used in high-tech fields. It is a highly active adsorption material and is an amorphous substance. Color-changing silica gel is insoluble in water and any solvent, non-toxic and tasteless, chemically stable, does not react with any substances except strong alkali and hydrofluoric acid, and has a much lower thermal conductivity than other materials at high temperature, which is its unique characteristic. With the continuous growth of technology, in the production process of computers, silica gel is mainly used for the bonding of high, medium and low-grade graphics card heat sinks and motherboard chips. This is because it is not easy to fix the heat sink on the graphics card chip, and the heat sink on the graphics card is generally relatively small, so it is most suitable to use silicone bonding; in addition, silicone is a material that helps the system to dissipate heat and has good thermal conductivity. It is insulating and does not lose tack at higher temperatures, so it is also mainly used for sticking on the surface of equipment.