Thermal Spray in Civil Engineering

Steel structures, especially in regions close to sea, are subjected to humid air containing salt and to chemicals from the atmosphere. Protection of the steel construction with zinc or aluminium by use of the arc-spraying technique is an application which permits the constructions to be protected for many years. These metals are less noble than iron.

Examples of some of the steel structures that are protected from corrosion by sacrificial coatings include:
In addition, the coatings (most notably, aluminum) are also use extensively in ship applications, such as topside weather equipment, machinery spaces, and interior wet spaces.

The use of thermal spray metallization makes it possible to achieve fully effective, maintenance-free protection against corrosion and corrosion-enhanced mechanical failure of steel structures for more than three decades.