Corrosion Protection of Residential Wrought Iron Fence
Corrosion Protection of Residential Wrought Iron Fence
(OP)
I want to construct an iron fence close to a beach around a house. The soil is sandy and has a high salt content. I want to minimize maintenance on the fence. Other than a zinc based primer can the fence be protected with sacrificial anodes such as zinc attached to the fence? I was thinking of a blob of zinc on each panel such as is done to protect outboard motors. Alternatively, could you use cathodic protection by applying a DC voltage from say a solar panel?





RE: Corrosion Protection of Residential Wrought Iron Fence
RE: Corrosion Protection of Residential Wrought Iron Fence
Could you attach the Zn anode to the bottom of the metal fence with a screw like is done on outboards? Is there a relationship between weight of iron protected vs weight of Zn anode?
RE: Corrosion Protection of Residential Wrought Iron Fence
I don't know how one would calculate the amount of Zn or Mg required-depends on many factors. But even small anodes will protect if the spacing isn't too great.