Yes, powder coating can be successfully applied over galvanised steel.
Understanding Powder Coating on Galvanised Steel
Based on available information, including the provided reference, powder coatings can be applied over hot-dip galvanizing. This process is a recognised method for finishing steel that has undergone galvanisation. It serves as a great way to add a desired look or color to the material, enhancing its appearance for various projects.
Benefits of This Combination (Duplex System)
Applying powder coating over galvanised steel creates what is often referred to as a "duplex system". This combination leverages the protective qualities of galvanising with the aesthetic and additional protective features of powder coating.
The reference highlights specific advantages of using duplex systems on steel:
- Enhanced corrosion protection: The layer of powder coating adds another barrier against environmental factors, significantly extending the lifespan of the steel compared to galvanising or powder coating alone.
- Aesthetic benefits: Powder coating allows for the application of virtually any color or finish, providing a durable and attractive surface that can match specific design requirements.
Why Combine Galvanizing and Powder Coating?
Combining galvanising with powder coating is a practical solution when both long-term durability and specific aesthetic finishes are required. The underlying galvanisation provides robust protection against rust and corrosion, particularly in harsh environments, while the powder coat offers a resilient surface finish that protects the galvanised layer and provides the desired visual appeal. This duplex system offers a high level of protection and versatility.
For further information on this topic, you can explore resources on metal finishing techniques.
