Heres a boat I did earlier this week, put in over fifty hours of work into it. The fiberglass was badly oxidized both inside and out.
I started off by washing the boat and trailer with #54 - Gel Wash, the trailer was then rubbed out with a combination of #49 - Heavy Duty Oxidation Remover and #44 - Color Restorer, then it was protected with #50 - One Step Cleaner/Wax.
The boat itself was deeply cleaned with #49 - Heavy Duty Oxidation Remover to remove the oxidation, that was followed with #50 - One Step Cleaner/Wax, and then that was followed with Flagship Premium Marine Wax.
Here are a few before shots:
Heres what M44 can do on an oxidized trailer:
The after pictures:
Motor waxed by hand with M50:
Storage areas deep cleaned with M50 as well:
I did underneath the boat as well, I was able to remove the oxidation with M50:
Metal polished with M93:
Seat was cleaned and conditoned with #57 - Vinyl & Rubber Cleaner/Conditioner