Anti-rust Effect of Epoxy Zinc-rich Primer

Anti-rust effect of epoxy zinc-rich primer
Shielding function: Isolate water, air, oxygen, and electrolyte from direct contact with steel.
Corrosion inhibition: The corrosion inhibition released in the paint film can delay the service life of steel.
Cathodic protection: refers to the electrochemical reaction of zinc powder in the coating, sacrificing the anode, protecting the steel, thereby prolonging the service life of the steel. Spraying zinc-rich primer on the surface of steel is an effective anti-corrosion method commonly used in the industry.
Anti-rust principle of epoxy zinc-rich primer:
Because metallic zinc is electrochemically more active than iron, when moisture invades the coating, the zinc in the anode will be corroded due to the loss of electrons, and the surface of the steel in the cathode region will continue to receive electrons, thereby being protected. . And at the same time, the zinc oxide produced by the zinc sacrificial anode can also play a shielding role on the coating and strengthen the protection of the coating.