We usually use the term "hot dip galvanizing", but the definition of sherardizing of metal products in the molten zinc alloy above the zinc melting point of 450-460 is more accurate.
The word diffusion is the key word meaning that zinc diffuses into the steel material. Diffusion makes the hot dip galvanizing one of the most effective passive method to protect steel against corrosion. Galvanizing is a process of steel refining.
Hot dip galvanizing is described by the EU standards which imposes specific quality requirements and therefore we must use the best technological solutions available. Moreover, the market and the customer also compel us to search for new and better solutions.