No wax will ward off filiform corrosion on panel edges and holes under the rivet heads. They may tell you it will, but it won't. And it most probably cannot protect exterior fittings, wheels and accessories for any length of time.
You need a corrosion prevention product for that, CorrosionX and Boeshield T9 are good ones, applied on a regular basis depending on exposure of the Airstream to northern road salt and coastal salt air. And frequent washings when exposed to these conditions. Don't forget to treat the underbody steel as well.
It takes much less time to treat for corrosion four times a year than once a year waxing, or polishing.
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Doug and Cheryl
2012 FC RB, Michelin 16, ProPride 1400
2016 Ram 1500 Laramie Crew Cab 4X4 Ecodiesel 3.92 axles
The Truth is More Important Than the Facts
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