Hot‑dip galvanizing – Do it once, do it right.
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.
Applications of Hot-Dip Galvanizing
Infrastructure & Construction
Bridges, towers, building frameworks
Highways & Transportation
Guardrails, poles, street furniture
Industrial Plants & Equipment
Pipelines, cable trays, machinery frames
Agricultural & Rural Structures
Fences, silos, irrigation systems
Why It's the Best Choice?
Infrastructure & Capacity
75,000
Total Area (Sq.ft)
54,000
Built up area (Sq.ft)
3,500MT
Monthly Capacity
50 MT
Weight Bridge Capacity
1000 L/hour
ETP Capacity
250 KVa
Diesel Generator
Creanes & handling Equipment
No. of Overhead creanes 12, forklifts, Hadya
Key Benefits & Features
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.
Pre-treatment – The First Step to Decades of Corrosion-Free Steel
Before steel is dipped into molten zinc, it must undergo rigorous pre-treatment and surface cleaning to ensure proper zinc adhesion, uniform coating, and long-lasting corrosion protection.
This step is crucial because galvanizing only protects what it can touch—any oil, rust, or scale left on the steel will prevent proper bonding.
Why is Pre-treatment Important?
Improves Coating Quality
Clean steel ensures zinc metallurgically bonds with the surface.
Enhances Durability
Eliminates impurities that could cause coating failures.
Smooth & Uniform Finish
Removes rust, scale, and contaminants for consistent appearance.
Why It's the Best Choice?
Hot-dip galvanizing is not just a coating—it’s a lifetime investment. By choosing galvanizing, you ensure rust-free steel, reduced maintenance costs, and reliable performance even in the harshest environments.
Degreasing / Alkaline Cleaning
Removes oil, grease, and dirt using caustic or alkaline solutions.
Rinsing
Washed with clean water to remove cleaning chemicals.
Pickling (Acid Cleaning)
Immersion in hydrochloric or sulfuric acid baths to remove rust, scale, and mill coatings.
Rinsing Again
Ensures no acid residues remain on the steel surface.
Fluxing
A zinc-ammonium chloride flux solution prepares the steel, preventing oxidation before galvanizing and aiding zinc adhesion.
