Curing Fiberglass

[1gary]

This question is a little off the beaten path for cars/ trucks/hot rods.The main reason for posting it here is I can't think of anyone who's advise I would trust more than you guys with the work you guys do.

I have been restoring my smaller vendor trailer which is going to be towed by my Astro Ole Yellar van.



We built racks to pug into the uprights for the side vendor doors.







As I hope you can see we have been putting in a serious effort into this trailer.

There are two doors on each end for storage of the salable inventory in stacking cases.



We are now heading towards remodeling the inside of the trailer.The center will have three trap doors to get to the belly of the trailer and to have the storage cases set on.But before we do that we want to skin the fiberglass belly with a sub flooring for reinforce it.But before we do that here is the question.

What product or products can I use to cure and preserve the unpainted inside of the fiberglass belly??.And If I use POP to do rust preventive on the frame inside of the trailer and it gets on the fiberglass,will it harm the fiberglass??.

As I said with the resto you guys do,far beyond anyone I trust your input.

Thank You for the help in advance,

Gary

BTW:This is what it will look like once painted and will be the same color as the Ole Yellar V8 powered Astro Tow van.