My Montana High Country is now 5 years old. I've never put wax on it of any type. The graphics are still in great shape. When we purchased it, we had it treated with Resist-all. The only thing I've ever done is wash the camper with a mild Dawn Dishwashing liquid solution. That's it. And I use WD-40 for removing road tar splatters.
The shine is still there (when it's cleaned)
On 3 previous campers, I had graphics pealing. The first was only 2 years old. The second was 8 years old. The third was 5 years old when we traded them. I learned the reason the graphics started pealing was because of using wax on them. That's why I've never used wax on my current Montana. Actually, with the Resist-all treatment, even after 5 years, it's still pretty darn shinny.
My suggestion if you use wax of any type... do not apply it over the graphics. For me, this was a hard lesson.
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History is not about the past, it's an explanation of the present.
2019 Montana High Country 375FL
2014 Chevy Silverado Duramax, 6.6L Dually