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How to prevent rusting
Since rusting costs so much money steps have to be taken to prevent it
happening. There are two main ways of protecting iron and steel from
corrosion. The first method uses a physical barrier to keep out air and
water. The second method called sacrificial protection,…

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Sacrificial protection:

Railway lines cannot be painted or covered in any other material as
the coating would wear off. A different method of coating has to
be used where coating the metal would be impossible or difficult.
It is discovered that attaching a more reactive metal will stop it


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