Anticorrosive coating to solve the difficulty of anticorrosion also need to start from the fundamental.

Corrosion resistance of materials, anticorrosive coating play a great protective role, anti-corrosion solution, but also from the fundamental solution of anticorrosion. The anticorrosive principle of anticorrosive coating mainly includes three aspects: electrochemical principle, chemical principle and physical principle.
​

• 1, the electrochemical effect of anticorrosive coating: the electrochemical effect of anti-corrosion refers to the addition of some special substances in the anti-rust coating, so that the water and oxygen will react through the anti-rust coating to form anti-corrosion ions, so that the surface of steel and other metals passivation, thereby preventing the dissolution of metal ions, to achieve the purpose of anti-corrosion, the most common in this special substance is chromate.
• 2, the chemical principle of anticorrosive coating: the chemical principle of anticorrosion is to neutralize harmful acid and alkali substances into neutral harmless substances to protect the materials in the anticorrosion coating from corrosive substances. Some amphoteric compounds are often added to the anticorrosion coating, such as aluminum hydroxide, barium hydroxide and zinc oxide, which are easy to chemically interact with acid and base harmful substances to achieve anti-corrosion effect.
• 3, the physical principle of anticorrosive coating: the physical principle of anticorrosion coating is to separate the protected material from the corrosive substances outside. The physical principle of anti-rust coating is to use film forming agent to obtain a dense anticorrosion coating to isolate the damage of the anti-corrosion effect on the protected material, such as lead soap can be formed after the reaction of lead paint and oil to ensure the density of the anticorrosive coating.