Hot-dip galvanising plant

Zinc is a natural metallic element. It occurs naturally in air and soil as well as in reservoirs. Zinc is harmless to the environment and even essential for the proper development of living organisms. It is recyclable. Thanks to its properties, a zinc coating on steel surface provides effective protection against corrosion. The main method of applying the zinc layer, apart from electroplating, is hot-dip galvanising.

This method is mainly used for large steel structures exposed to weather conditions. Depending on the thickness of the components to be galvanised, the resulting zinc coat is from 50 µm to over 100 µm thick. During the service life of a galvanised structure, which is not protected by a paint coating, the zinc coat is depleted. The average depletion of a zinc coat on a structure operated in non-aggressive conditions is 1-2 µm/year. Hence, the average life of zinc coating is 30 years and can reach up to 100 years. The hot dip galvanising technology is not a metallurgical process and is therefore not harmful to the environment.