Good Sam Club Open Roads Forum: Truck Campers: Cleaning NL (fiberglass) shell
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 > Cleaning NL (fiberglass) shell

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bkenobi

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Posted: 03/25/20 07:59am Link  |  Quote  |  Print  |  Notify Moderator

So for my original question it looks like bar keepers friend might help. I'll look for that.

bigfootgrey

Connecticut

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Posted: 03/25/20 02:21pm Link  |  Quote  |  Print  |  Notify Moderator

[image]

Wash with simple green then apply a quality marine wax like 3-M cleaner wax. Lots of work but lasts


2011 Ford F-350 PSD SC DRW
2008 Bigfoot 25C-10.4E
Firestone airbags - torklift stable-loads,fastguns,Talons Rancho rs 9000XL’s. 2015 Lund Alaskan 1600 tiller.

bkenobi

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Posted: 03/25/20 03:11pm Link  |  Quote  |  Print  |  Notify Moderator

I forgot I had simple green already. Sounds like it's worth a try. Are brillo pads too aggressive?

jimh425

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Posted: 03/25/20 03:16pm Link  |  Quote  |  Print  |  Notify Moderator

I wouldn’t use brillo pads or anything that abrasive.


'10 Ford F-450, 6.4, 4.30, 4x4, 14,500 GVWR, '06 Host Rainer 950 Dbl Slide, Torklift Talon tiedowns, Glow Steps, and Fastguns. Bilstein 4600s, Firestone Air Bags, Hankook DH-01 225/19.5 Fs, Curt front hitch, Energy Suspension bump stops.


bigfootgrey

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Posted: 03/25/20 03:18pm Link  |  Quote  |  Print  |  Notify Moderator

Yeah Stay away from the Brillo pads! The gel coat will love you for it! If you have any stubborn stains, try the cleaner wax and some elbow grease.

bkenobi

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Posted: 03/25/20 03:23pm Link  |  Quote  |  Print  |  Notify Moderator

So what is tough enough to clean but not damage gel coat?I've been using a semi stiff brush (similar to finger nail cleaner) and a soft brush on a pole for the most part.

Grit dog

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Posted: 03/25/20 03:58pm Link  |  Quote  |  Print  |  Notify Moderator

As stiff brush may leave "slight" scratches (hard to see on white), but not likely.
I wouldn't worry about any plastic type brush like a scrub brush, but the best bet is just test an inconspicuous area with whatever device or solution you're using if you have any doubt.

Gel coat is tough stuff.

Also an orange based cleaner/degreaser may work well and simple green sounds like something good to try.

If it's just crusted on organics, time for the cleaner to penetrate/soak in and soften will help too.

A great, but somewhat expensive, spray and wash away cleaner is cycle wash, for dirt bikes. That stuff is pretty awesome. It penetrates baked on dirt/scum and is also a mild de-greaser.


"Yes Sir, Oct 10 1888, Those poor school children froze to death in their tracks. They did not even find them until Spring. Especially hard hit were the ones who had to trek uphill to school both ways, with no shoes." -Bert A.

Siletzspey

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Posted: 03/25/20 05:48pm Link  |  Quote  |  Print  |  Notify Moderator

gbopp wrote:

This is the Process For Applying Zep.


Looking at some boat forums, it looks like Zep is highly regarded (!), but some users are saying at best it lasts 1-2 years more than wax, and then you're in for a bigger job to strip the old and apply the new. Frosting and peeling were two issues raised.

Still, I'm curious what others have experienced on campers. Re-waxing the sides is easy enough, but I'd love a longer lived roof coating.

--SiletzSpey

JimK-NY

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Posted: 03/25/20 06:48pm Link  |  Quote  |  Print  |  Notify Moderator

Siletzspey wrote:

gbopp wrote:

This is the Process For Applying Zep.


Looking at some boat forums, it looks like Zep is highly regarded (!), but some users are saying at best it lasts 1-2 years more than wax, and then you're in for a bigger job to strip the old and apply the new. Frosting and peeling were two issues raised.

Still, I'm curious what others have experienced on campers. Re-waxing the sides is easy enough, but I'd love a longer lived roof coating.

--SiletzSpey


I am on my 5th year with ZEP. No peeling, no yellowing, no signs of any deterioration. If I had to start over, I would strip the old finish with a couple washes with dilute ammonia. I would probably use a kitchen scrub pad to make sure all the old finish was removed. Then I would just reapply by wiping on coats with a rag dampened with ZEP. I expect to have to do that one of these days...maybe a few more years from now.

ZEP should work just fine for a fiberglass roof. It will even stick on top of caulk after the caulk has thoroughly dried.

bkenobi

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Posted: 03/25/20 07:12pm Link  |  Quote  |  Print  |  Notify Moderator

What about reapplying new caulk? Seems like every time I turn around I find a split/cracked seam.

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