What are the best 5 methods of rust protection ?
Firstly rust is caused by iron turning to iron ions due to the action of water and oxygen. Iron ions form by the loss of electrons ie oxidation Painting, greasing and galvanising (coating with zinc) all work by preventing the water and oxygen getting to the surface of the metal and hence preventing rusting There is also cathodic protection. This is when the metal is connected to the negative terminal of a battery. Electrons are forced onto the metal therefore they cannot be lost and rust cannot occur eg in oil rigs or protection of the body of a car The last is sacrificial protection. This is when the metal is attached to a more reactive metal The more reactive metal will lose electrons preferentially protecting the other from rusting eg magnesium is used to protect steel underground pipes and zinc blocks are attached to ships hulls. BTW I take it you are talking about iron as rust is iron oxide. Iron is the only metal to rust..all others corrode.
