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Glossary

Electro-Galvanized (EG) Process

The Electro-Galvvanized (EG) process is an industrial process used to apply a thin, uniform coating of zinc onto a steel substrate, primarily to enhance its corrosion resistance.

The process is fundamentally an electroplating technique where the steel is submerged in an electrolyte containing zinc ions.

This mechanism involves passing an electric current through the bath, reducing the positive zinc ions and depositing a metallic zinc layer on the negatively charged steel surface, known as the cathode.

A key advantage of this precise method is its exceptional control over coating thickness and uniformity, resulting in a smooth, aesthetically pleasing finish.

This finish, and the resulting high surface quality, make EG steel highly suitable for demanding applications such as painting and deep drawing, particularly in the automotive industry.

Diagram of DSTI’s 'Daiwa Z Process,' a unique in-line galvanizing method.