Hot Dip Galvanizing Process for Corrosion Resistant Finish

In 2007, the Madden Family became Hot Dip Galvanizers. This addition provides control of important issues such as quality, delivery and immediate status to make your project successful. This new division is on our six acres along with our manufacturing plant. Our centrifuge can spin small products, threaded or not. Our kettle size is 14 feet by 6 feet by 4 feet.

Please Note: Inspections are done after each step to insure the metal is ready for galvanizing and final inspection before shipping.

Step 1 - Hot Caustic Rinse - Removal of oil, organic materials, mill primers and paint.

Step 2 - Hydrochloric Acid Pickling - Removal of rust and mill scale.

Step 3 - Prefluxing in Zinc Ammonium Chloride Solution (Surface Conditioning) - Gives the steel a better adhesion to the actual zinc dip.

Step 4 - Hot Dip Galvanizing at 840 Degrees Fahrenheit.

Step 5 - Final Inspection, cleaned, cooled, weighed and packaged.

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