Hey all, I received an extra long roof rack for my 4runner for xmas and want to water proof (and rust proof it) to the best of my ability before installing it. I live in NY, do not have a garage, and intend to leave it on 24/7/365 so direct sunlight in hot summers and cold winters. I grabbed two cans of rubberized bed liner to spray the whole thing, and some Krown anti-rust spray to spray inside, but my question is about where the rack pieces slide into each other and where the screws connect the pieces. I purchased both Black RTV Silicone Instant Gasket and JB Weld Steel Reinforced Epoxy. Will either of these work for creating a water proof seal where the roof rack pieces connect and where I screw them together or is there something else I should purchase?
Lastly, anything else I'm forgetting? Oil based rust inhibitor inside, seal all connection points, truck bed spray the whole thing?
Thank you!