Hot-Dip Galvanisation vs Galvanisation
To understand the process of hot-dip galvanisation, it’s helpful to understand what standard galvanisation is first. Essentially, galvanisation is the process of applying a protective layer of zinc coating to steel or iron. This helps to boost resistance to corrosion for decades and is practiced on frameworks, staircases, and walkways. However, it is important to understand that while galvanised steel or iron can resist corrosion for years, even decades, it will eventually begin to corrode.
Hot-dip galvanisation, on the other hand, immerses the steel bath of molten zinc, providing an inside-out barrier from corrosion. As a result, hot-dip galvanised metals provide a more robust and long-lasting protection from corrosion. For electrical installations that could be facing harsher environments, like those found underground or outdoors, hot-dip galvanisation is superior in terms of longevity.
Despite the potential for higher up-front costs, this method can result in a more cost-effective solution as there is less money spent on replacements and maintenance upon installation.
The TTE Hot-Dip Galvanisation Process
TTE steel conduit tube is designed to be suitable for use in demanding environments for long periods of time. This is why they are hot dipped galvanised inside and out, as it offers a heavier level of protection and the highest Class 4 corrosion resistance compliance.
Undertaken in a purpose-built plant, the steel is dipped into a molten zinc bath to galvanise the steel and to provide an even coating. However, there is an additional finishing touch to ensure the conduit tubes deliver the high-quality expected. The tubes are subjected to a final superheated steam blast. This ensures the bore is smooth and defect-free, which in turn minimises any potential cable damage during installation projects.
Conclusion
Hot-dip galvanisation provides a comprehensive barrier against corrosion and for electrical installations that are required to last the test of time, it is the superior process when compared to its counterpart. Buyers and contractors who are looking to implement a long-lasting electrical installation should almost always ensure their steel conduit tubes are hot-dipped galvanised like TTE steel conduit tube. When not subjected to this process, it can result in more frequent replacement costs for corroded products, additional maintenance expenses, and earlier re-installation fees.