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Contact corrosion

When two components with different compositions make metallic contact and there is dampness present in the form of an electrolyte, contact corrosion will occur. The more base element is attacked and destroyed.

Please note the following to prevent contact corrosion:

      Prevent the connection from coming into contact with an electrolytic medium.

      For example, metals should be insulated using rubber, plastic or coatings such that contact current cannot flow to the point of contact.


      Avoid pairing up different materials wherever possible. For example, screws, nuts and washers should be adapted to the components being joined.