Cathodic corrosion prevention

Cathodic (or active) corrosion prevention is a technical process in which a potential reduction of corrosion is achieved with the aid of a cathodic current. At the level of around - 850 mV (which is referred to as the cathodic protection potential for a normal soil), the electrochemical corrosion process is almost entirely hold. The corrosion speed is reduced to a virtually negligible level of less than ten micrometer (0.010 mm) a year.