After trying out various products to clean the GRP roof, I have the job to do again from the compounding stage

Having used rubbing compound made by car plan, I found it hard going (but not as bad as the Tcut episode, don't use t'cut on the roof)

Has anyone used a bilt hamber clay bar (this I think is the only one you don't need to buy a lube to use with, it uses water instead)

My past shining episodes used
Bosun polish but this didn't last long and a shine was hard work

autoglym this has silicone in so stopped using (silicone and GRP not good) the content was listed in a magazine which is how I was aware.

meguires carnauba no 4 this cause the roof to be shiny but only lasted 2 to 3 weeks

303, designed for grp fibre glass, has a uv deterrent but is not easy to apply, and again only lasts a month


I would like a protectant with UV additive that doesn't need excessive rubbing and wiping off for a gloss(hehehe ) shine

Polish without uv additive actually speeds up the aging process ie chalking bubbling possible cracks, if the 303 info was to be believed.
well most of us has experienced chalking or surface dulling

Has anyone tried this and can give their experience.


1.Farecla G10-500 500ml G10 Fine compound

Farecla G10-500 500ml G10 Fine compound by Farecla Products Ltd


2.Farecla Marine Surface Restorer - 500ml

Farecla Marine Surface Restorer - 500ml by Farecla
Only 5 left in stock.
Sold by Versatile Marine


3.Farecla Ultimate UV Wax Polish - 500ml


Farecla Ultimate UV Wax Polish - 500ml by Farecla
In stock
Sold by Fibreglass Supplies UK


Can anyone say what they use?

a polishing machine in my case isn't an option I can handle.

Protec Cover? Large Straw hat?
You can polish away the soft Gel-Coat, it is less than 1mm thick
I would cover the roof when not in use, there are roof caps on the market.

Quote: Pop540 wrote in post #1

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autoglym this has silicone in so stopped using (silicone and GRP not good) the content was listed in a magazine which is how I was aware.

meguires carnauba no 4 this cause the roof to be shiny but only lasted 2 to 3 weeks

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Um - but didn't I read on here somewhere that Autoglym was to be recommended for the GRP roof whilst the Carnauba was recommended for the main body? I went and bought some Autoglym on that advice although I haven't got around to using it yet?

Auto Glym is anti UV apparently and I used it on the roof,
Harley carnauba wax for the sides.
Seriously though keeping the roof covered is the best solution
http://www.leisureoutlet.com/caravans-an...CFQoYwwodrUYATQ
http://www.caravancovershop.co.uk/carava...CFQUIwwod250AHA
http://www.leisure-mart.co.uk/shop/vprod2.asp?cat=29004618

Quote: Aaron Calder wrote in post #6

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There are some seriously disturbed people into vehicle detailing. Have a look at their web sites and you'll see what I mean.

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No need - there's a couple on here me thinks.

Yep there some serious detailers out there, but am just looking to protect with the hope of a shine

use the eriba as a conservatory, chill out area, so always in use (even in the depths of winter )

thought sharing my experience of polish over the years of ownership would perhaps help or perhaps not

Deeps the article was in a old ford mag, presume it was fully investigated and autoglym gave all product info at the time, but do check out their website for more upto date info as pete said..look at faq
they could of revised the ingredients since that article.

their rubber/plastic protection product is excellent on crocs and wellys for spucing up very worn looking ones to almost new.

the cover idea would work if it wasn't so windy here, having waved goodbye to the car cover am a bit reluctant to shell out (no pun intended) to a roof cap one.
cant keep applying protection every month so thought would ask here..

My neighbour snow foams, his car, his motorbike (a Harley) and his caravan,
three times each! then comes the detailing.
All three look as if they have just come from the showroom. and he does take
the lot to Switzerland and other such far flung places

He probably goes to Switzerland to get away from the Crows

OK, really stupid question here..........polish first followed by wax or vicky vercky? If polish first - why bother if you're going to go over it with wax?