Cathodic Protection is accomplished by applying a direct current to the tank surface of the metal, which causes the electrochemical potential of the structure to shift from a corroding state to a polarized and non-corroding state.

The CP system consists of an MMO coated titanium ribbon anode which runs in parallel straight lines mainly. In one direction. In the other direction runs conductor bar which is titanium ribbon and at each intersection the two are spot welded together. The MMO activated titanium has much lower resistance to earth and current only passes into the soil from the anode.

Alternatively horizontal, vertical or deepwellgroundbeds can be used to protect tank bases however these can only be used if containment layers are not installed. It is also possible to use SACP in form of zinc or magnesium ribbon in concentric circles or strips to protect tank bases but uses are limited due to the low driving potentials involved.

The CP system consists of an MMO coated titanium ribbon anode which runs in parallel straight lines mainly. In one direction. In the other direction runs conductor bar which is titanium ribbon and at each intersection the two are spot welded together. The MMO activated titanium has much lower resistance to earth and current only passes into the soil from the anode.

Internal CP of tanks and vessels can be installed on any equipment containing an aqueous phase.Oil storage tanks with aqueous cuts tend to protected by SACP with aluminum anodes welded to the tank base and monitoring system are often not installed.

Water tanks and other aqueous based environments can be protected by either SACP or ICCP with the decision normally based upon the resistivity of the electrolyte.

For SACP anodes are connected directly to the structure. For ICCP anodes can be suspended from the roof, drilled through the tank walls or suspended with non‐metallic eyelets mounted in the tank.

Anodes can be MMO or platinized activated titanium in tubular, wire or ribbon form.

UCPI provides Aluminum anodes to virtually any size or configuration which may be required by an offshore structure or pipeline, which are tailor made to the OFFSHORE STRUCTURES. The submerged and buried steel work of the jacket of an offshore platform is usually left uncoated, and cathodic protection is solely applied to protect these areas. Sacrificial anodes for platforms are generally cast with tubular steel cores which are welded to the jacket bracing members. The current discharged from the anodes will protect the entire steel structure including the buried pipe piles and well castings. In the case where continuous monitoring of the platform potential is required, permanent potential monitoring equipment including the monitoring anodes and monitoring instruments can be installed on the platform. The columns or legs of jack up drilling rigs are generally coated with high performance protective coatings whereas the spud cans or mat are often left uncoated.

When designing a cathodic protection system for a jack-up rig, the constraints by the rig operations must be taken into consideration. This would require the positioning of the anodes on the legs or spud can so as not to disrupt the jacking operations or transit of the rig.

For the protection of a semi-submersible rig, anodes installed on the columns and hull or Pontoon would be flush mounted to minimize resistance during transit.

Internal areas of the spud can or mat are invariably fitted with sacrificial anodes. The type and quantity of anodes are designed to ensure every compartment and corners of the tank internals are receiving full protection until the end of the anode design life.

Submerged fixed structural steel in a marine environment is one of the most critical areas for cathodic protection. Steel piling of these structures is often coated to some 3 to 5 metres. Below low water and is left bare below the depth Designers of these structures rely predominantly on cathodic protection to protect submerged and buried steel surfaces. With sacrificial anode systems, a large number of anodes are distributed throughout the piles and because of the even distribution of anodes,the level of protection is usually very uniform.

Corrosion is one of the greatest enemies of the ship and its machinery. It is also the toughest enemy to fight against, for the people working on the ship.

Iron is one substance which is used in abundance on the ship. From the main body of the ship to the smallest equipment used in operations, iron makes its presence felt in almost every type of equipment used onboard.

Iron is also the most corrosion-prone material when it comes in contact with air and water. A ship is continuously in contact with water and moisture-laden winds which makes it highly susceptible to corrosion. The outer body of the ship (mainly hull) is continuously in contact with water, making it extremely vulnerable to corrosion.

It is for this reason sacrificial anodes are used to protect the parent material and UCPI also supply and installation of SACP.

Cathodic protection (CP) is a technique used to control the corrosion of stop log gate surface by making it the cathode of an electrochemical cell. A simple method of protection connects the metal to be protected to a more easily corroded "sacrificial metal" to act as the anode. The sacrificial metal then corrodes instead of the protected metal. An external DC electrical power source is also used to provide sufficient current to the structure. UCPI provides both SACP & ICCP.