There are more than a thousand talc production and processing enterprises in China, but no more than 10 enterprises can produce fully qualified molecular compounds for plastics. There are no more than 15 companies that can produce basic qualified products. At present, China's relatively capable manufacturing enterprises focus on the production of export products and seriously ignore the growing domestic demand. A large part of the talc used in the domestic molecular compound plastics industry comes from SMEs and informal enterprises. This makes it difficult to guarantee product quality. At the same time, it is worth mentioning that the origin of some talcum powder used in scientific research in China is also very uncertain, which makes the reliability of its conclusions greatly reduced.

Talc has a significant strengthening effect on molecular compound plastics, but not all talc products have a strengthening effect. The enhancement effect is very different with different product grades. It is difficult to propose uniform and specific standards for talc used in the molecular compound plastics industry. The general principle is: try to use pure talc products with the appropriate particle size, the product does not have to be as fine as possible. In view of the diversity of talc mines, achieving technical results requires technical support from manufacturers. When selecting a product, at least the "four degrees" of talc should be considered, that is, purity, whiteness, fineness, and flake.