Well, I can’t say it's categorical, but I’ve asked the same question as I looked at these new-age switch panels myself. My concern was whether or not the boards were seal or clear coated as part of the manufacturing process. The answer I got was yes. This in effect makes these components water sealed and quite moisture resistant. Not submersible, but certainly resistant to never ending exposure to salt air and humidity. So, time will be the true test, but seems like a no worry situation for now. I know I certainly haven’t heard of this being a real problem as yet.