Hot Dipped Galvanized vs Painted structural steel in cold environments

[Material98]

Please advise. Can we use Zinc based paint system instead of Hot Dip Galvanizing for Structure Steel items in cold environment?

 

[hokie66]

Yes, but hot dipped galvanizing is better than almost all other coating systems.

 

[moltenmetal]

Depending on what kind of cold environment, the alternative of no coating system may also be acceptable. We are currently building a piece of equipment for northern Alberta which has no coating system on structural steel at the request of the client- because in practice, no coating system is required for medium term durability in that environment.