Rust Resistant Lighting Fixtures for Coastal Applications
Why do metal lighting fixtures rust?
Metals or alloys are typically categorized into two subsets, those primarily containing iron (ferrous), and those that do not (non-ferrous). Rust is naturally occurring on any metal surface that is “ferrous” in nature. The metal components in most lighting fixtures (primarily iron) will naturally oxidize and corrode over time. As this happens, rust begins to appear and eventually the metal itself will begin to decay, eventually returning to its raw state of soil or dirt.
What can be done to prevent rust in lighting fixtures?
The best way to combat rust in lighting fixtures that are made of ferrous alloy is to use high quality paints and finishes. This includes powder coating, epoxy primers and paints, and top quality clear coats. Even with these preventative measures, there are certain geographical locations that are just too harsh even for the best of coatings. At Unique Iron Lighting we provide additonal solutions to address these issues.
Solution #1: Non-Ferrous Undercoats for Exterior Lighting
One solution to problems with rust is to use a non-ferrous undercoat that will protect the base metal from corrosion. We do this by zinc plating or utilizing a zinc/aluminum flame spray process. This process thoroughly coats the base metal and protects it from rusting. Normal painting applications are then used to paint and finish each piece.
Solution #2: Non-Ferrous Fabrication for Exterior Lighting
The best way to prevent rust is to fabricate pieces that are not prone to rusting. At Unique Iron Lighting, in addition to fabricating steel lighting fixtures, we also utilize other alloys. Our fabrication capabilities include brass, stainless steel, and aluminum metalwork. All three of these alloys are non-ferrous and therefore will not rust.
Above: custom fabricated brass wall lantern for a coastal residence located on the West coast; Customer wanted the fixtures to patina naturally, so no additional finish was requested.
Above: aluminum lighting pendants in the middle of fabrication for a residence located on the Florida coast. These pendants will eventually be painted in a custom blue color along with polished nickel components.