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To further increase customer confidence and address more of our customer needs, we now provide our customers with the following marketing leading range of guarantees. 




Click on above guarantee logos to access the full details of our product guarantees.


C1 to C5 Corrosion Classification Explained

The C1 to C5 corrosion classification is based on BS EN ISO 12944-2 and BS EN ISO 9223 This system is used across many manufacturing and construction industries to enable a common language of corrosion environments.  

C1 | Very Low Corrosion Environment ► The C1 class includes material that are not exposed to corrosion in normal atmospheric air 

C2 | Low Corrosion Environment ► Atmosphere with little or no degree of pollution 

C3 | Medium Corrosion Environment ► City and industrial atmosphere, moderately polluted with sulfur - Possibly coastal climate with little salt

C4 | High Corrosion Environment ► Industry and coastal areas with moderate salt content 

C5 | Very High Corrosion Environment ► Industry and coastal areas with high humidity and aggressive atmosphere. Coast and sea areas with a high salt content 


For the other world region, please refer to the correct page : Southern Africa | Apac