Aluminum anodes for freshwater

Aluminum anodes for freshwater is safe, and aluminum anode is the only anode safe for all applications. Aluminum anode alloy provides more protection and longer service life than zinc. When your ship is intermittently in fresh water, it is recommended to use aluminum anode, which is not recommended for a long time.

The aluminum anode is well protected in salt water and in the upper layer of brackish water, but the lower layer of brackish water is poorly protected and in fresh water. However, aluminum passivates faster than zinc (thin film on oxide coating). If cleaned regularly, aluminum will work. Otherwise, the aluminum anode may be "passivated", making it useless.

Zinc anodes are not suitable for use in fresh water because they will form a hard and dense coating within a few months, thus reducing the efficiency of the anode. Aluminum alloy provides some protection in fresh water, but not as good as magnesium - so aluminum is recommended only if your ship is intermittently in fresh water. Magnesium is the preferred transparent anode in fresh water. It provides excellent protection in this low conductivity liquid.

Chalco provides professional aluminum anode solutions for pipeline cathodic protection, tank cathodic protection, power plants, petrochemical plants, oil fields, ports and docks, offshore oil platforms, etc., and provides high-quality aluminum anode materials. Welcome to consult.