1, sericite diameter thickness is relatively large, can be as high as 80 or more, so sericite in the coating added to the film formed in the formation of sericite will be arranged in the form of laminated layers. Sericite stacking arrangement, not only can increase the medium penetration distance, improve the coating resistance to penetration, but also improve the scratch resistance of sericite.

2, sericite before and after the addition of the test results of the coating film shows that the addition of sericite coating film hardness is more than twice as high as that of ordinary coatings without the addition of mica. Sericite coating and ordinary coatings, when tested in the same environment, sericite coating boiling water resistance is significantly higher than ordinary coatings.

3, sericite coating in the practical application also shows higher weather resistance than ordinary coatings, can significantly extend the service life of the coating. Sericite itself has very good corrosion resistance, and at the same time has excellent resistance to penetration, so sericite coating can play a good role in isolating corrosive media.

The application of mica powder in the coating is mainly reflected in the following aspects: (1) barrier effect Sheet filler in the paint film to form a basic parallel orientation arrangement, water and other corrosive substances on the penetration of the paint film is strongly blocked in the use of high-quality sericite powder (wafer diameter-thickness ratio of at least 50 times, preferably more than 70 times), water and other corrosive substances to penetrate the paint film penetration time is generally extended by 3 times. The penetration time of water and other corrosive substances through the paint film is generally extended by 3 times. Since sericite fillers are much cheaper than specialty resins, they have a very high technical and economic value.　　The use of high quality sericite powder is an important means to improve the quality and performance of anticorrosive coatings and exterior coatings. In the coating process, sericite wafers are subjected to surface tension before the curing of the paint film and lie down, automatically forming a structure that is parallel to each other and to the surface of the paint film as well. Such layers are arranged in such a way that their orientation is exactly perpendicular to the direction of corrosive substances penetrating the paint film, and the blocking effect is most fully realized.　　(2) Improve the physical and mechanical properties of the paint film The use of sericite powder can improve a series of physical and mechanical properties of the paint film. The key is the morphological characteristics of the filler, that is, the diameter-thickness ratio of the flake filler and the length-diameter ratio of the fibrous filler, the particles of the filler as in the concrete sand and gravel, play a reinforcing role in the steel reinforcement.　　(3) Improve the anti-abrasive properties of the paint film The hardness of the resin itself are limited, and many fillers are not high strength (such as talc). On the contrary, sericite is one of the components of granite, its hardness and mechanical strength. Therefore, when sericite powder is added as a filler in coatings, its anti-abrasion performance can be significantly improved. Most of the car coatings, road coatings, mechanical anti-corrosion coatings, wall coatings use sericite powder.　　(4) Insulating properties Sericite has a very high electrical resistance, itself is the most excellent insulating material. With silicone resin or silicone boron resin to form a compound, when encountered at high temperatures into a ceramic material with good mechanical strength and insulating properties, so that wires and cables made of this type of insulating material, even if burned in a fire, still maintains the original insulating state. This is very important for mines, tunnels, special buildings, special facilities.　　(5) Flame retardant Sericite powder is a valuable flame retardant filler, if with the organic halogen flame retardant, can produce flame retardant and fire retardant coatings.　　(6) Ultraviolet and infrared resistance Sericite has excellent properties for shielding ultraviolet and infrared rays. Therefore, by adding wet sericite powder to outdoor paints, the UV resistance of the paint film can be greatly improved and the aging of the paint film can be slowed down. Its infrared shielding properties are used to formulate thermal insulation and heat-insulating materials (such as paints).　　(7) Heat radiation and high temperature coatings Sericite has good infrared radiation ability, such as with iron oxide, etc., can cause excellent heat radiation effect.　(8) Sound insulation and vibration damping effect Sericite can significantly change a series of physical modulus of the material, forming or changing the viscoelasticity of the material. These materials are highly efficient in absorbing vibration energy and weakening vibration and sound waves. In addition, the repeated reflection of vibration and sound waves between mica wafers also has the effect of weakening their energy. Sericite powder is also used to formulate anechoic, acoustic and vibration damping coatings.