Corrosion Resistant Coating

Corrosion can be defined as surface deterioration caused by reaction to harsh environmental conditions, oxidation, or chemical action.
Thermal spray coatings can be an excellent application for providing protection against corrosion. Particularly in applications involving large structural components such as bridges, wind turbine towers, large expanses of pipes for example in petrochemical plants or refineries, water towers, or ship structures subject to salt water corrosion, aluminum or zinc coatings are applied as “sacrificial” coatings to protect the underlying substrate from corrosion.
These “sacrificial” coatings are designed to deteriorate but at a much, much slower rate than the substrate would. These aluminum or zinc coatings attract and capture oxygen molecules so they cannot reach the substrate and begin the destructive process of corroding it. Hence, they are in fact, “sacrificing” themselves to protect the substrate. These coatings last for decades and are extremely effective at providing corrosion protection over long periods of time against continuous exposure to corrosive attack.