Thermally sprayed aluminium (TSA) coatings are widely specified for the protection of steels from corrosion in seawater environments. These coatings are used for a wide range of offshore structures, risers, pipe components, bridges and ship structures.
The main service conditions for the application of TSA include seawater immersion, tidal and splash zones, and marine atmospheres, where toughness, low maintenance, and long-term service life are among the desirable properties offered by these coatings.
Where there have been problems associated with TSA coatings in the past, recent developments in spraying equipment via modification in nozzle and gun design, and process parameters (such as higher gas flow rates and gas pressures) can now produce superior TSA coatings with improved properties.
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