Selecting a corrosion protection system
Corrosivity category, required durability and maintenance strategy drive the choice of system.
Corrosion protection
Corrosion protection
Galvanizing, paint and duplex systems selected for the environment and design life.
The final coating system must be confirmed against the project specification, the corrosivity category of the site and the maintenance plan.
Hot-dip galvanizing
Zinc coating by immersion: robust protection, with member size limited by the bath.
Paint systems
Multi-coat systems selected for the corrosivity category, applied to prepared steel surfaces.
Duplex systems (galvanizing plus paint)
Paint over galvanizing for long durability or colour requirements.
Weathering steel
Steel that forms a protective patina in suitable environments, with design rules on drainage and exposure.
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