Electroplating & Galvanising

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Electroplating & Protection

Electroplating - Coating the surface of a metal with the thin layer of another metal.

Benefits of electroplating:

  • Thin layer of metal is cheaper than the whole product being made of the metal.
  • Change colour or appearance.
  • Stop corrosion or rust on the main metal.

Galvanising - Coating an iron compound in a thin layer of zinc.

Galvanising can be carries out using electroplating, or by dipping the object in molten zinc.

Sacrificial Protection - A method of rust prevention by using a metal such as zinc or magnesium to cover up iron compounds so that the iron doesn't rust

The sacrifial metal will eventually corrode away.

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