Protection Against Rust

Sacrificial Protection

Galvanising

Connecting to Mg or Zn

Cathodic Protection

Painting

Oil And Grease

moving metal such as a
bicycle chain cannot be
protected by painting as
the paint would quickly
wear away. Oiling the
chain keeps out air and
waiter and stoops it
rusting

Plastic Coating

Electroplate with an unreactive metal

tin plating is used to
protect food containers (
tin cans)
nickel plating covers
iron or steel with a
protective layer of
nickel