Selecting a corrosion protection system
Corrosivity category, required durability and maintenance strategy drive the choice of system.
防腐
防腐
根据环境和设计使用年限选择的镀锌、涂装和复合体系。
最终涂装体系必须根据项目规格、现场腐蚀性等级和维护计划进行确认。
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.