The in-line galvanizing process provides a triple layer of corrosion protection that slows down the WHITE RUST growth process, the top layer of a clear organic polymer gives the tube superior corrosion resistance, adding aesthetic appeal, and long-lasting surface brightness. The result is a smooth, shiny end product appearance that is unmatched in terms of strength and durability, it will not oxidize or "gray down" with age, nor will the coating flake off during fabrication operations.