That Poli Glow product really peaked my interest so I had a look into it. I have a newer '09 hardwall trailer that I thought that I might use it on but "
Poli Glow is not intended for use on new or shiny fiberglass." has me thinking otherwise. I think that I'll stick to washing and waxing it annually.
PS If you use carnauba wax it attracts bees for the first few days.
For best results, please read carefully BEFORE using our product
Poli Glow is a gelcoat restoration system, which is designed to restore faded and oxidized fiberglass. Poli Glow is not intended for use on new or shiny fiberglass.
https://www.poliglow.ca/images/2014_PREPARATION.pdf