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 > Best way to patch fiberglass?

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Frankandbeans

VA

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Posted: 07/08/14 07:16am Link  |  Quote  |  Print  |  Notify Moderator

Been googling a fair amount and trying to figure out the best approach to patching up my problem. It looks like the previous owner might have backed into a cement pole or something, and punched a hole in the gel coat. It's on the ramp door, slightly smaller than the size of a fist. The plywood (?) is broken, but the pieces are still there, it's just punched in.

I know my redneck way of fixing it would be to cut out the hole, fill it in with expanda foam, trim it flush, then try to use whatever pieces I can with a fiberglass repair kit. Short of replacing the entire door (Not happening), what's my best option?

rexlion

Broken Arrow OK

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Posted: 07/08/14 08:15am Link  |  Quote  |  Print  |  Notify Moderator

What? You wouldn't just cover it with duct tape??? [emoticon]

nayther

Burbank, CA

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Posted: 07/08/14 08:37am Link  |  Quote  |  Print  |  Notify Moderator

To correctly patch fiberglas you need to use fiberglas. But another option is Bondo, done quite frequently on boats and they make one for fiberglas, it has fibers in it. The good thing about Bondo is it is easy to work once it's set up. Get the substrate as flat as possible so you minimize how much you use, rough up around the hole and fill it with Bondo. I haven't tried it but I would imagine if you look around on Youtube you'll find some videos for patching fiberglas bodies like Corvettes or kit cars.


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Dog Folks

Naples, Fl. USA

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Posted: 07/08/14 10:10am Link  |  Quote  |  Print  |  Notify Moderator

I Don't mean to be flippant. Doing fiberglass repairs properly is not easy.

I would take it to a marina and let them do it.

Most of the larger ones are well equipped for such a repair.


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dockmasterdave

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Posted: 07/08/14 10:40am Link  |  Quote  |  Print  |  Notify Moderator

Dog Folks wrote:

I Don't mean to be flippant. Doing fiberglass repairs properly is not easy.

I would take it to a marina and let them do it.

Most of the larger ones are well equipped for such a repair.


X2 or a body shop. The "bondo" with fibers is called fiberfill. It is fiberglass resin and chopped glass fibers. After that you would use bondo AKA body filler, then prime and paint. Chances are they can do it so much faster than you, the price won't seem to bad. If you try it, wear long sleeves/pants and a respirator mask, even outdoors, or you'll regret it.


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fly-boy

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Posted: 07/08/14 10:55am Link  |  Quote  |  Print  |  Notify Moderator

Actually- it is a very easy fix. Anyone who has ever owned a surf board has made numerous repairs to fiberglass. [emoticon]

The great thing about the repair is that if you screw it up you can start over. Materials are cheap and readily available!

For sure I would tackle it on my own!


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dockmasterdave

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Posted: 07/08/14 11:56am Link  |  Quote  |  Print  |  Notify Moderator

I doubt he's going to re-spray the whole back end of a toy hauler in his driveway. It's a lot bigger than a surfboard. I've sprayed many cars commercially. Sure sounds easy.

gbopp

The Keystone State

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Posted: 07/08/14 12:01pm Link  |  Quote  |  Print  |  Notify Moderator

rexlion wrote:

What? You wouldn't just cover it with duct tape??? [emoticon]



Yes. It comes in different colors. Even camouflage.[emoticon]

Check YouTube, there a lot of videos on repairing fiberglass.

Frankandbeans

VA

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Posted: 07/08/14 01:07pm Link  |  Quote  |  Print  |  Notify Moderator

Wow...ok. So many options to choose from regarding what kind of fiberglass repair kit to use!

How about step 1 - What do you guys think of using the expanda foam as a way of having something for the fiber glass patch to stick to? I will take a picture of what I'm working with tonight so everyone can see what I'm trying to accomplish.

I AM going to fix this myself. I'm seeing a lot of similarities in RV's and sport bikes - it doesn't take much to total out these things. To be honest, it's not blue booking for a whole lot, and if I made an insurance claim to fix this and some other minor things (That aren't that big of a deal, but labor prices are insane), I'm willing to bet they could total it. I just want it to be water proof and as close to smooth as I can get it. I'll paint it with the classiest rattle can I can find, and call it good.

Bumpyroad

Virginia

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Posted: 07/08/14 01:12pm Link  |  Quote  |  Print  |  Notify Moderator

the white bondo is the only way to do it yourself, IMHO.
slapping glass fiber cloth on will look like slapped on fiber glass cloth. bondo can be smoothed, sanded, and painted to look as good as new.
bumpy





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