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Old 01-04-2013, 09:39 PM
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Repainting fiberglass motorhome.

I am in the process of repainting one of these.
Vixen Motor Home | HomePage

Almost all of them have bubbling in the paint. It appears to have black primer underneath the acrylic paint. Much of the original paint scraped off easily with a razor blade, but in some areas there is blistering below or behind the primer. An awing was on, that required many holes to be drilled and self taping screws were used to hold the drip rail on. When this was removed under the drip rail, there was a lot of bubbling under the primer.

Question
1. Have a number of screw holes and some larger holes to fill on the body. Have been using epoxy resin with matting on the larger holes. For the smaller holes will short strand fiberlgass filler such as everglass work, as it does say waterproof on the can.

2. Epoxy primer will be used but not sure at what stage. Once the holes are filled, sanded, and then finished with two part glazing putty, is that when the epoxy primer goes on and acts as a sealer? If there are any scratches showing through, should a coat of high build two part primer then be used over the epoxy primer?

3. It is going to be a white colour so would urethane paint be the best choice?

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Old 01-04-2013, 11:16 PM
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On one just carry on with the epoxy though I use the SMC filler for vettes on glass as it works just fine and will work with mat or cloth if needed..once all the holes are filled then 2 coats of epoxy may be all you need..using the 2k is fine over the epoxy if needed to fill small scratches,,Then a good single stage urethane to finish..Decals by the local sign shop to finish it off..

Refer to some of the questions on painting corvettes for further info on painting glass bodies,,

Sam
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