Although galvanized chains have strong corrosion resistance, prolonged immersion in water, especially freshwater or saltwater, may cause the galvanized layer to gradually corrode, affecting the durability of the chain. The zinc layer on the surface of galvanized chains can effectively resist the erosion of air, moisture, and some common chemicals. Therefore, galvanized chains can maintain good protective effects in short periods of water immersion. However, as the soaking time prolongs, especially in water bodies containing salt (such as seawater or humid environments in coastal areas), the zinc layer will gradually erode, which will reduce the anti-corrosion ability of the chain and even expose the metal body, leading to rusting.

The thickness and coating quality of the galvanized layer can also affect the durability of the chain in water. The zinc layer of hot-dip galvanized chains is relatively thick, with strong anti-corrosion performance, suitable for use in some humid or slightly water immersed environments. However, if the chain is exposed to water for a long time, especially in high salinity environments, corrosion phenomena will still occur. The coating of electroplated zinc chains is relatively thin, so their corrosion resistance is poor and they are more susceptible to water erosion, especially in situations with poor water quality.

If the galvanized chain must be soaked in water for a long time, it is recommended to regularly check the condition of the chain, clean and maintain it, and if necessary, reapply anti-corrosion coating or choose materials more suitable for long-term water immersion, such as stainless steel chains. Galvanized chains are suitable for use in humid environments, but long-term immersion in water, especially saltwater, will gradually affect their performance.