Application Advantages Of Sericite Powder In Coatings

Jul. 03, 2018

The sericite powder is different from biotite mica largely.The application advantages of sericite powder in coatings are mainly reflected in the following points:

First, before and after the addition of sericite powder, the test results of the coating film showed that the hardness of the coating film added with sericite coating was more than double that of the ordinary coating film without mica. When the sericite coating and the common coating are tested in the same environment, the boiling water resistance of the sericite coating is significantly higher than that of the ordinary coating.

Second, the sericite powder has a relatively large diameter and can be as high as 80 or more. Therefore, after being added to the coating, the sericite is stacked in a sheet form in the formed coating film. The cascading arrangement of sericite not only increases the medium penetration distance, improves the permeability resistance of the coating, but also improves the scratch resistance of the sericite.

Third, sericite powder coating also shows higher weather resistance than ordinary coatings in practical applications, which can greatly extend the service life of coatings. The sericite itself has good corrosion resistance and excellent anti-penetration ability, so the sericite coating can effectively isolate the corrosive medium.

Sericite powder is particularly suitable as an additive for paints and as a filler for some unique coatings. It can greatly improve the anti-aging performance of the coating, enhance the weather resistance of the coating, prevent cracking, discoloration, delayed pulverization, weather resistance and strong resistance. Widely used in waterproof coatings, anti-rust coatings, insulating coatings, fire retardant coatings, road marking coatings, anti-pollution coatings, anti-high temperature coatings and other special coatings.

sericite powder