Fumed silica is an inorganic chemical product. His color is white, which is opposite to the color of carbon black. He has no smell, shape or toxin. It can also dissolve in water and disperse in water. It is obtained by hydrolysis of two chemicals at high temperature. Next, I will introduce some uses of fumed silica.

First, it is used in paint and coating in our life. Fumed silica can improve the smoothness of paint, control their gloss, and prevent the coating from scaling. It is a very important additive in paint.

Second, it is used in adhesives and sealants. In both of them, gas-phase carbon black can well control the precipitation of substances and act as a thixotropic agent. It is also a reinforcing material, which can improve the rheology of rubber and enhance the mechanical strength.

Third, it is used in ink printing. In ink printing, it can avoid the smearing in the printing process and ensure the clarity of the printed matter.

Fourth, it is also used in common lubricants in our life. Its thickening effect plays an important role in lubricants.


These are just some basic and common functions of fumed silica. In fact, it is also used in many aspects of our life. It is a very important chemical product in our life.