Rust under trailer on frame parts.
Our 2011 Jayco shows rust underneath on the frame, especially around joints and welds. I guess one option is to scrape and repaint. Another I think would be some sort of spray on undercoating/rust...
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Fluid Film is what I use. It lasts about a year or so then needs to be reapplied. I use it on the tow vehicle as well. Quick and easy, but somewhat messy, so it is best sprayed over a grassy area or put down a cover of some sort. Keep it out of the brakes.
