What is Hot-Dip Galvanization?

 İron and steel have always made life easier, since the day they were invented. Because of it’s ease of process, durability, ductility and ease of essembly, steel is used almost everywhere. Most of the development and technological breakthrough followed steel. Structural steel is used in buildings in many countries due to its endurance against earthquakes.

 Besides its many advantages, steel has an important disadvantage : CORROSION.

 Steel has a tendancy to oxygen. This forms corrision and the chemical composition of steel is deformed in time. It disintegrates because of decomposition. The most recent and shocking example to this disadvantage was the Marmara Earthquake. The construction steel, inside the concrete in buildings was decomposed and weakened to 50%. 

The most effective method to eliminate this disadvantage is metallic coating. Biological and chemical coatings are life limited and ineffective. HDG is a metallic coating and at the end of the coating process, iron forms a bond with zinc.

 HDG, in simple, is a coating, formed by defusion when iron or steel, which are compatible to galvanization by their design and composition, is immersed in melted zinc bath.

 HDG is a coating method, used nearly for 150 years. Most of the zinc produced in the world are used for coating. Most important reasons are the resistance of zinc to natural decomposition, it’s protective nature to iron and its low-price.