Zinc-Iron

the primary advantages of zinc- iron are an economical cost, and an ability to develop a deep uniform black conversion coating,

Zinc- Iron - the primary advantages of zinc- iron are an economical cost, and an ability to develop a deep uniform black conversion coating, offering good corrosion protection, from a non silver passivate. Additionally, the coating has good weldability and workability. It is also used as a base for paint.