Mica powder is a kind of non-metallic mineral, which contains a variety of components, mainly SiO2, the content is about 49%, and the content of Al2O3 is about 30%. Mica powder has good elasticity and toughness. Insulation, high temperature resistance, acid and alkali resistance, corrosion resistance, strong adhesion and other characteristics, is an excellent additive. It is widely used in electrical appliances, welding electrodes, rubber, plastics, paper making, paint, paint, pigment, ceramics, cosmetics, new building materials and other industries. With the continuous development of science and technology, people have opened up new application fields.

　　Mica powder is easy to distinguish. According to experience, there are several methods, which are for your reference only:

　　1、 Mica is not high in whiteness, about 75. Often received the customer's question, the reaction mica whiteness is about 90, under normal circumstances, mica whiteness is generally not high, only about 75. If other fillers such as calcium carbonate and talc powder are doped, the whiteness will be greatly improved.

　　2、 Mica powder is a sheet structure. Take a beaker, add 100ml of purified water, stir with glass rod, and it can be seen that mica powder is very suspended; Other fillers include transparent powder, talc powder, calcium carbonate and other products, and the suspension property is not superior to mica powder.

　　3、 Make a little, apply it to the wrist, with a little pearlescent effect; Mica powder, especially sericite powder, has a certain pearlescent effect, and is widely used in cosmetics, coatings, plastics, rubber and other industries. If the pearlescent effect of mica powder purchased is poor or there is no pearlescent effect, it should be noted at this time.