Zinc sacrificial anodes are mostly used in soil environments with soil resistivity less than 20 ohms · m or seawater environments. The electrode potential is -1.10VCSE and the drive voltage is 0.25V.

When the temperature is higher than 49℃, intergranular corrosion occurs, and when the electrode potential of the zinc anode is higher than 54℃, it reverses the polarity of the steel and becomes the cathode

To protect, while the steel becomes anodized by corrosion. Therefore, zinc anodes are generally used at temperatures below 49 ° C. Zinc anodes must be backfilled.

Zinc alloy sacrificial anodes are suitable for ships, machinery and equipment, Marine engineering and harbor facilities in seawater medium, as well as pipelines and cables in sea mud

It is a cathodic protection against corrosion.