I was washing the Eriba and thought I would also add some wax/polish to the roof. I took out my Auto Glym super resin polish and then looked at the additives, it contains petroleum which is no good for fibreglass, the next tin was Simonz original with carnauba, this has a turpentine smell and the instructions says don't use on plastic. The danger of using car products is that they are not made for GRP...
I think I am going to play it safe and get some Meguiars pure wax which is specially developed for fiberglass gel finishes on boats etc.

Has anybody used this product?

https://www.amazon.co.uk/MEGUIARS-M5616-...ps%2C187&sr=8-2

Marine wax:
Blends pure Brazilian Carnauba wax with polymers and resins to provide durable long-lasting protection and extraordinary gloss
Uv Protection:. protects against the sun’s ultraviolet rays Use with confidence: safe, effective and easy to use on all Fiberglass gel Coat and painted marine or RV surfaces

Interesting post, well timed for me as I'm looking at reviving my pop top.
I'm surprised at the objection to Auto glym super resin as that seems to be the go to product at the moment.

I'm only just understanding the difference between a "polish" and a "wax"

The product that you have highlighted appears to be a wax which is fine on an already good surface.
I need something to restore the matt finish of my pop top before adding a wax.

Hi
I am nowhere near as experienced as you gents but I have been using the AutoGlym Super Resin polish on the pop top roof for the 3 years we have had our Troll and not noticed anything wrong.
MikeT

I have also found SRP to be fine on my roof, I do however find it too abrasive for the dimpled bodywork of my 2001 Eriba. I'll wash with Autoglym Shampoo & Conditioner, SRP the roof & only wax the bodywork. At the moment I'm finding Turtlewax "Wax It Wet" gives a decent finish & is fantastically easy to apply.

Haha, that caused a stir, my thoughts are would it not be best using a product that is specifically designed for boats that also use GRP with a gel coat, rather than car wax/polish products that are developed for use with paint on metal?
I do use Bobby dazzler however the Maguire marine wax with carnauba is specially designed to restore the gloss on the gel coat and provide UV protection which is the biggest enemy to turn your Poptop to a big piece of chalk..

I am sure I saw on Eribafolk FB somebody had used Maguires on the roof and and it looked like a sheet of glass when they had finished.

Maguires is used by the majority of my fellow mariners on gel coat. I’m guessing it would perform well on the pop top. Inspired by these posts, I’ve looked out an old bottle of Carnuba wax and will try it and report back. The manufacturer has gone bust but I see the suggested applications include boats and caravans.
I seem to recall the other necessary component is a liberal application of elbow grease! By the by, how does everyone get up there to apply it

A good question Captain - I struggle a bit reaching the middle of the roof. Not as good at climbing now with my new metal hip joints. I had an extending thingy but broke it last time I used it.
MikeT