Zinc Sacrificial Anodes For Boats/Ships
Zinc anodes has been used as a sacrificial anode material in
seawater since 1824, when Sir Humphery Davy used zinc blocks to prevent corrosion of the copper cladding on the
hulls of British warships.
Modern zinc anodes used for cathodic protection are cast from high
purity zinc (99.995 %) alloyed with-aluminium and silicon to combat
impurities and cadmium to give uniform dissolution with loose
dispersibl corrosion products.
Our zinc anode are design and manufactured for the following
applications such as Ship Hulls, Ballast tanks, Offshore
structures, Pilings, Submerged Pipelines, Piers and other similar
applications in a variety of sizes, weights and configurations.
Custom fabricated anodes are also available on your demand.
Zinc anode is primarily used for corrosion prevention in seawater
of steel and aluminum equipment and structures such as ship hull,
ballast tank, heat exchanger, condenser, pier, pilling, etc. It can
also be used as packaged anodes as grounding cells on electrical
motors panels, conduits, and caross insulators on pipelines to
limit dangerously high voltages.
However, zinc anode is not recommended to use in freshwater. In
freshwater, zinc can form a passive film. This film insulates the
anode and stops it from protection.
Zinc anode provides the lowest driving voltage in comparision with
aluminum anode and magnesium anode . Therefore, it does not easily
cause overprotection which leads to coating disbondment and
hydrogen damage of high strength steel.
Our anode, high purity zinc ingot 99.995% and other high quality
raw materials with rigid production and inspection procedure to
ensure our zinc anode meet or excel the international standard