Hot-Dip Galvanizing

Hot-dip galvanizing is one of the most effective and widely used methods for protecting steel from corrosion. Hot-dip galvanizing (HDG) is the process of coating steel or iron with a layer of molten zinc to protect it from rust and corrosion. The steel is cleaned, dipped in molten zinc at around 450°C (840°F), and then cooled, forming a strong metallurgical bond.
Barrier Protection – Zinc forms a protective shield that isolates steel from moisture and oxygen.
Cathodic (Sacrificial) Protection – Even if the coating is scratched, zinc sacrifices itself to protect the exposed steel.
Long-Lasting Corrosion Protection – Galvanized steel can last 20–70 years depending on environmental exposure.
Lowest Life-Cycle Cost – One-time galvanizing eliminates frequent repainting or repairs, making it the most cost-effective corrosion protection solution.
Durability & Mechanical Strength – The zinc-steel alloy layers are harder than steel itself, offering excellent impact and abrasion resistance.
Fast & Complete Coverage – The dipping process ensures even, complete coating, including edges, corners, and hidden surfaces where paint often fails.
Sustainable & Eco-Friendly – Zinc is recyclable, and minimal maintenance saves energy and resources over the structure’s lifetime.