Corrosion Protection Services Information

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Corrosion protection services mitigate environmental or chemical attack through the application or installation of coatings, liners, cathodic protection, sacrificial anodes and corrosion inhibitors. Corrosion is the electrochemical degradation of metal due to reaction with the environment. It can result from gradual chemical action such as rusting or a rapid chemical action such as pickling. Corrosion protection services may be used to prevent corrosion; reinforce wall thickness to provide additional strength; and repair coatings, liners, or fittings.

Corrosion protection services use coatings to block corrosion, reduce wear, and maximize flow. There are different types of corrosion resistant coatings including powder, pipe, tank, and liquid options. Corrosion resistant coatings may be either organic or metallic, and are used for protection against metal substrates. Metallic coating is a popular corrosion protection service as it used for galvanizing, where metallic zinc is applied to carbon steel for protection.

Liners are similar to corrosion protection coatings in that they are used to provide reduce or block corrosion, while providing maximum asset life. Liners are often made from high density polyethylene, and can be applied to precast or existing structures. Corrosion protection liners offer high levels of abrasion resistance, and come in various thicknesses and colors.

Another corrosion protection service is cathodic protection (CP). CP is a corrosion control technique that works as a cathode of an electrochemical cell. When placed in contact with the metal in need of protection, another more easily corroded metal acts as the anode of the electrochemical cell. Cathodic corrosion protection services are often used to protect steel, pipelines and storage tanks, ships, and oil platforms and well casings. CP may also be used to prevent stress corrosion cracking.

Other types of corrosion protection services include sacrificial anodes and corrosion inhibitors. Sacrificial anodes or rods are metallic anodes used in cathodic protection. These anodes are called “sacrificial” because they are oxidized first, rather than the protected metal – thus, becoming a barrier between the protected metal and corrosion.

Corrosion inhibitors are a type of corrosion protection service where chemicals or compounds decrease corrosion in metals and alloys when they are added to a fluid or gas. There are three types of corrosion inhibitors including anodic inhibitors, cathodic corrosion inhibitors, and mixed inhibitors (anodic and cathodic). Other types of corrosion protection services may also be available.

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