Not sure if the UV resistant wax will keep the cap from oxidizing. That is a characteristic of the GEL-Coat/Clear Coat. I am not trying to be negative, but something you need to keep in mind with these GEL-Coat caps is that you need to keep a very close eye on them.
The nice thing of JAYCO is that they have a 2 year warranty that will cover the cap (lately someone said $1500 limit). It is not only JAYCO that has this issue, when I had my cap redone (2013) there were a few Prevost motor homes being done at the service center.
What you need to do is, if at any point you notice that there is a small spot that is oxidizing, you take pictures and send it to JAYCO (not dealers but corporate). This way you are on record. Hopefully they have the issue resolved, but TIME will tell.
Check the cap, especially the top, the first day of each month.
Don
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