Electro-galvanizing, also known as cold galvanizing, is a process where zinc is applied to the surface of steel using electrochemical deposition. It creates a thin and uniform zinc layer, typically 5 to 20 microns thick.
Compared to hot-dip galvanizing, the zinc layer from electro-galvanizing is thinner and provides moderate corrosion resistance, but it offers a much smoother and brighter surface finish. This makes it ideal for applications requiring high surface quality or precision forming.
Electro-galvanized steel is often used in household appliances, electronics, automotive components, and indoor construction materials. The steel is easy to paint and weld, making it suitable for secondary processing.
Although electro-galvanized steel is less suited for outdoor or aggressive environments, it is a preferred choice for applications where appearance and dimensional accuracy are important.