1, calcium phosphite does not contain heavy metal lead and harmful to human body chromium and other substances.

Paint is the most widely used material to prevent metal corrosion. The active antirust coatings used in the traditional antirust paint are generally lead paint (such as red lead, lead powder, etc.), chromate paint (such as zinc chrome yellow, strontium chromate, etc.), zinc paint (such as zinc powder, etc.) and phosphate antirust coating, among which red lead is good antirust effect, but the lead contained in it is harmful to human health, many countries have banned the use of legislation. Chromate coating also has a better anti-rust effect, but chromate is also harmful to human health, and pollution of the environment. Therefore, calcium phosphite is non-toxic, efficient anti-rust coating is the current milestone raw material of anti-rust coating.

2. Calcium phosphite has the characteristics of strong adhesion, high rust resistance and good weather resistance.

Calcium phosphite is a kind of non-toxic and efficient reducing antirust coating. Its coating has strong adhesion, good weather resistance and good antirust effect

Characteristics, in the 1990s, the United States, Japan and so on have begun the research of calcium phosphite antirust coating. In the past two years, the preparation of calcium phosphite and its application in coatings have also been studied in China. Salt spray test, brine immersion, atmospheric exposure and other methods are the classic methods to evaluate the anti-rust properties of coatings. With the development of electronic technology, electrochemical test methods and electron microscopy technology have been gradually introduced into the research of the anti-corrosion mechanism of coatings. Polarization curve and electrode potential aging are the main methods to study the mechanism of calcium phosphite rust prevention.