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Metal that has been extracted from its primary ore (metal oxides or other free radicals) has a natural tendency to revert to that state under the action of oxygen and water. This action is called corrosion and the most common example is the rusting of steel. Corrosion is an electro-chemical system that comes to the […]

Cathpro Indonesia is an impressed current, flexible cable anode for use in cathodic protection systems for buried structures. Placed alongside a pipe or other buried metal structure, Cathpro Indonesia provides uniform cathodic protection to every point, with a minimum of interference from adjacent structures.   What is Cathpro Indonesia? ... a Cable Anode Cathpro Indonesia [...]

Acid Containing an excess of hydrogen ions over hydroxyl ions. Alkaline Containing an excess of hydroxyl ions over hydrogen ions. Anode The electrode thru which direct cutting-edge enters an electrolyte. Anodic area The part of the steel surface that acts as an anode. Bond a chunk of metallic conductor, both strong or bendy, usually of [...]

In the usual application, a galvanic anode, a piece of a more electrochemically “active” metal, is attached to the vulnerable metal surface where it is exposed to the corrosive liquid. Galvanic anodes are designed and selected to have a more “active” voltage (more negative electrochemical potential) than the metal of the target structure (typically steel). For effective […]

Cathodic protection (CP) is a method of corrosion control that can be applied to buried and submerged metallic structures. It is normally used in conjunction with coatings and can be considered as a secondary corrosion control technique. Cathodic protection can, in some cases, prevent stress corrosion cracking. Principle cathodic protection The principle of cathodic protection is [...]