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finished wrought iron
Galvanizing ensures a tough, durable and abrasion resistant coating that lasts up to 75 years.
If the zinc surface is scratched, surrounding layers of zinc will electrochemically protect the exposed metal. This is due to the anodic relationship between zinc and iron and is often described as self-sacrificing.
As stated in the powder coating section, galvanizing costs can also be less than liquid painting for the reasons stated below.
Liquid painting requires surface preparation including removal and disposal of rust and residual paint that add to labor costs. Additional supplies such as cleaners, primers and finishing paints are factored into the material costs while increasing labor time as well. Since liquid paint does not protect from the environmental elements like powder coating does, maintenance costs will be incurred for the life of the product
Zinc, used in galvanizing, is essential for all life and can be found in most minerals. Nearly 30% of the world's supply comes from recycled zinc.