Hot-dip galvanising provides the ideal corrosion protection for steel. In suitable applications, no other protective coating matches the unique combination of low initial cost, durability, predictable performance, low maintenance and resistance to impact and mechanical damage offered by galvanising.
Hot dip galvanising is one of the most complete corrosion protection systems. It is a reliable, effective and economical process.
The Cape Galvanising Consolidated plant is one of the largest in the Southern Hemisphere. Structures of considerable dimensions such as a 13.5 x 1.5 x 2.4 metre article, weighing up to 7 tons can be galvanised in a single dip.
In order to be galvanised, steel goes through a series of cleaning tanks and is finally immersed in molten zinc at 450°C. The hot-dip galvanising process results in unique physical properties. These are high adhesion, hard inner layers, and a ductile surface layer. This forms a coating that is highly resistant to rough handling.
Provided there is suitable venting, hot-dip galvanising provides both internal and external protection on hollow structures. Painting the galvanised item results in even longer-life protection.