What is the difference between domestic and foreign brands of the same grade of silica?

1. The quality of foreign products is microscopically analyzed. The primary particle size is relatively uniform and stable, while the users are concerned about the dispersibility, thickening, thixotropic and stability of the product, rather than the so-called specific surface area and pH. This is only the definition and characterization of the product grade, not the actual performance indicators of the product;

2. The quality index of foreign products is good, and the repeatability and stability of the products are good. Users do not need to change their formulas frequently when they use them, and almost no waste products are generated. This is the real reason why users are willing to use them.

3. The main reasons why domestic products cannot be applied to the high-end field are: the technology is backward, not selected according to the working conditions, the equipment manufacturing standard is low, and the overall technical level is different from that of foreign countries by 20-30 years. Product repeatability and stability are also reasons why it cannot be applied in the high-end field.

4. Vapor white carbon black is an additive for industrial products. The proportion of production cost of some industrial products is relatively small, and the price is not the main factor. Its stability and repeatability are the concerns of users, which is also the product of foreign companies. The price is high, and the user is still willing to choose the reason.