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Wannabe racer
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Discussion Starter · #1 ·
So I broke down and bought a used set of Sharkskinz and I need to make some repairs. Can someone give me an overview of how to do it? I got some fiberglass cloth, the harder and gel just not sure how to get it to work. I followed the directions but the cloth didn't seem to want to stick to the bodywork.
 

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I would go find a dupont or PPG rep and get some of there adhesive kits. Much stronger than any glass cloth. Real easy to use to, it's just like using a kauk gun.
 

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Evil Moderatrix,
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8,030 Posts
When I get home, I'll take a look at the resin and fabric we're using and let ya know.
 

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Who's faster Lupi
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4,957 Posts
keep me posted. looks like i have 2 bikes to fix as well.
 

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Slow Poke
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I just follow the directions with the kit. Make sure the mixture is close. I've found it very easy to do. I actually enjoy doing it a little. I'm going to fix my yellow tail before I sell it.
 

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habitual line stepper
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3,235 Posts
Do some sanding first, the area shouldn't be a smooth clear-coat finish, the stuff wont adhere. Worst case use a green Scotch brite pad to rough the finish.

Apply the fabric to the inside, don't laugh, I have a buddy that put it on the outside--can you say Frankenstein? Anyway repair from the back side, put the cloth down, mix the resin and hardner and apply the goo.

The stuff will be very hard and hard to sand, so you don't want too much excess on the visible side. You'll probably want to sand down the visible side once it's hardened, add some spot filler/bondo to the visible side, blend, and primer.

That's about how it goes....
 

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Jack said:
Do some sanding first, the area shouldn't be a smooth clear-coat finish, the stuff wont adhere. Worst case use a green Scotch brite pad to rough the finish.

Apply the fabric to the inside, don't laugh, I have a buddy that put it on the outside--can you say Frankenstein? Anyway repair from the back side, put the cloth down, mix the resin and hardner and apply the goo.

The stuff will be very hard and hard to sand, so you don't want too much excess on the visible side. You'll probably want to sand down the visible side once it's hardened, add some spot filler/bondo to the visible side, blend, and primer.

That's about how it goes....

Good advice Jack.

I used to do a bunch of fiberglass work when I was into model sailplanes. One thing you can do to improve the "sandability" of the resin mix is to add a product called "micro-balloons". Its basically REALLY small balls of styrofoam which you mix with the resin, makes it MUCH easier to sand smooth or shape= less bondo. You can find it at your local hobby shop....I think its made by K&B.
 

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habitual line stepper
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3,235 Posts
Also, if you're patching a hole you might want to tape something to the visible side to reduce the amount of resin that soaks through. You can use tape or maybe take some aluminum foil covered on some cardboard and tape it to the surface. Might end up with less sanding too.
 

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Evil Moderatrix,
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8,030 Posts
I found it! Standard fiberglass mat and Evercoat fiberglas resin (comes in a quart can, with its own hardener). Just follow the instructions on the can for mixing. Follow Jack's instructions for application.

And make sure the windows are open!:helmet
 

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Wannabe racer
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Discussion Starter · #11 ·
Thanks for all the advice, apparently my first attempt I must not have added enough hardner, so I will try again. It's not easy to get the correct amount since it says 1/4 tube of hardner to 1/4 can of resin. Gee that's a good way to guess how much should go in. :laughing

I'll let you guys know how it goes, and yeah I knew better than to put the cloth on the outside, unless you were going to coat the whole thing in it how could anyone expect it to look decent that way?
 
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