Batch Hot-Dip Galvanizing Production Process

The batch hot-dip galvanizing process, also known as general galvanizing, produces a zinc coating on iron and steel products by immersion of the material in a bath of liquid zinc. Before the coating is applied, the...
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Reasons for Duplex Coating

There are seven good reasons to paint or powder coat hot-dip galvanized steel: Extended Durability – in what is called the synergistic effect between galvanized steel and paint, the zinc of the galvanized coating...
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Why is lead added to the galvanizing bath?

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Why does the galvanized coating thickness depend on the steel thickness?

The hot-dip galvanized coating is an intermetallic layer of iron and zinc, meaning the zinc and iron react and diffuse into one another to create the galvanized coating. If more iron is available to react with the z...
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How to Clean Wet Storage Stain

Treatment of wet storage stain begins with drying the galvanized surface. As long as water remains on the zinc surface, and airflow is limited, the corrosion mechanism responsible for wet storage stain will continue...
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Coating Characteristics of Continuous Sheet Galvanizing

After galvanizing, the continuous zinc coating is physically wiped using air knives to produce a uniform coating across the width of the strip. The uniform coating consists almost entirely of unalloyed zinc and has...
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How to Prevent Wet Storage Stain

Prevention of wet storage stain includes not tightly stacking newly galvanized products on top of one another, removing standing water, and providing adequate air flow over the zinc surfaces. Newly galvanized artic...
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Galvanizing small parts, hardware, and fasteners to ASTM A153

ASTM A153 governs zinc coatings applied by the hot-dip process on iron and steel hardware, including nails, bolts, nuts, fasteners, and rods.  The hot-dip galvanizing process for articles galvanized to ASTM A153 is...
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Wet Storage Stain vs. White Rust

Many people perceive wet storage stain to be the same as white rust and use the two terms interchangeably, but they do have distinct differences. Wet storage stain is the commonly known problem of white surface oxi...
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What role does zinc play in human health?

Zinc is an essential micronutrient for human health. It is vital for activating growth and physical and neurological development in infants, children and teenagers. Zinc is found in all parts of the body. It is a co...
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