Sorry it took a while but had to go out to the Scamp
which is parked in a storage area here in the park to get the info.
I have used "Star brite" marine polish in the blue pint container and bought it at Mills Fleet Fram store in Minnesota.....works fairly well as a cleaner/polish but................
Also tried Star brite "Instant Hull Cleaner" as a stain remover with limited sucess (it works better than just a cleaner/polish)
I have had better luck with Duragloss 581 "Black Streak Eliminator" these last two products I bought at a local marine (boat) dealer in Minnesota.
I have had the most luck getting safe fiberglass cleaners and polishes from marine stores.
After cleaning the last step is applying a good coat of paste wax (carnuba based) by hand over and over again it's the only thing that will last. Most other polish and waxes are either silicon or petroleum based (kerosene) and look good for a short time.
to quote Mr Miyagi ".........wax on, wax off" ;)