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Old 04-12-2017, 05:22 PM
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C3 4ME
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Default whats the best epoxy?


This is an end to the 3 piece repro indy pace car spoiler. You can see it comes with one stud in one of the bosses from the manufactuer, but I want to add 2 more studs in the other 2 bosses so it will draw up tight against my fender. The part is urethane, and I'd like for the stud to not be able to pull back out over time, and like i said, I need use the stud to draw the end piece up tight against the fender. That being said, any suggestions?
Old 04-12-2017, 05:47 PM
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tfringo
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Default Hi,

I would go to a good automotive paint store and look at the two part urethane adhesives. Talk to a knowledgeable person. Also, call Lord Fusor is a good product. I have used it to glue steel to fiberglass. Bullet proof bond. But I don't remember which one I used.

Regardless, I would test its strength after gluing whatever it is that you are gluing.

Good luck!



Originally Posted by C3 4ME

This is an end to the 3 piece repro indy pace car spoiler. You can see it comes with one stud in one of the bosses from the manufactuer, but I want to add 2 more studs in the other 2 bosses so it will draw up tight against my fender. The part is urethane, and I'd like for the stud to not be able to pull back out over time, and like i said, I need use the stud to draw the end piece up tight against the fender. That being said, any suggestions?
Old 04-12-2017, 06:15 PM
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rajin cajin
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Here ya go.

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Old 04-12-2017, 07:54 PM
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C3 4ME
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Thanks guys. I was sure something like the 1 minute epoxy you get for instance from Lowe's wasn't the way to go.
Old 04-12-2017, 07:56 PM
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Originally Posted by rajin cajin
Here ya go.

I just looked this exact product up. Can it be used without the gun, or is the gun a necessity?
Old 04-12-2017, 09:44 PM
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bj1k
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Fusor products are good but expensive and they only sell it in large double tubes and you need a special gun to dispense it . Once the seal is punctured it has a shelf like . For what you are describing I use JB Weld and it can be bought almost anywhere and is fairly cheap . When I mount a stud I make a hole big enough for a small bolt to be inserted with the head first then bond it in with JB Weld. The head being bonded in will keep it from turning or pulling out. I never had a stud fail using this method.
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Old 04-12-2017, 09:55 PM
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Originally Posted by bj1k
Fusor products are good but expensive and they only sell it in large double tubes and you need a special gun to dispense it . Once the seal is punctured it has a shelf like . For what you are describing I use JB Weld and it can be bought almost anywhere and is fairly cheap . When I mount a stud I make a hole big enough for a small bolt to be inserted with the head first then bond it in with JB Weld. The head being bonded in will keep it from turning or pulling out. I never had a stud fail using this method.
Is there a specific JB weld you use? I'm thinking I've seen a few different types. I'm liking your idea of a bolt instead of just a stud.
Old 04-12-2017, 09:57 PM
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MAD IN NC
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Check with a marine store... they have products in smaller quantities
Old 04-12-2017, 10:44 PM
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Originally Posted by bj1k
Fusor products are good but expensive and they only sell it in large double tubes and you need a special gun to dispense it . Once the seal is punctured it has a shelf like . For what you are describing I use JB Weld and it can be bought almost anywhere and is fairly cheap . When I mount a stud I make a hole big enough for a small bolt to be inserted with the head first then bond it in with JB Weld. The head being bonded in will keep it from turning or pulling out. I never had a stud fail using this method.
I like going with mechanical fasteners too-

I'd get one of these- many sizes to chose from -even HomeDepot carries them.

Drill a smaller hole-heat it up -then screw it in like butter- probably won't even need epoxy.


Last edited by Richard454; 04-12-2017 at 10:45 PM.
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Old 04-13-2017, 08:08 AM
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You could run the risk of damaging the part by heating . Not all plastics would soften the same way.
Old 04-13-2017, 09:17 PM
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Here's what I wound up doing. I bought some of the fasteners shown above, drilled out the 2 lower bosses and installed the fasteners with JB Weld. The fasteners felt very solid without any JB Weld, but I like the extra insurance. I'll let it cure till tomorrow night, then hopefully get it installed problem free. If no problems, then the other side should be a piece of cake.
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Old 04-13-2017, 09:27 PM
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Looks like a good job . Should hold fine . Where did you find your fasteners ?
Old 04-13-2017, 09:55 PM
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Originally Posted by bj1k
You could run the risk of damaging the part by heating . Not all plastics would soften the same way.
Sorry- Heat up the "stud"- not the plastic.
Old 04-14-2017, 07:41 AM
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Originally Posted by bj1k
Looks like a good job . Should hold fine . Where did you find your fasteners ?
right on the shelf at Lowe's. I'll spray them with some semi flat black inside the fender so they don't show as much.
Old 04-14-2017, 09:30 AM
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Originally Posted by C3 4ME
right on the shelf at Lowe's. I'll spray them with some semi flat black inside the fender so they don't show as much.
That's what I thought . They have a very good hardware section. I buy a lot of things there.
Old 04-14-2017, 03:45 PM
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I have a 1978 with a rear spoiler, a few of the bolts rusted away. I used standard J B Weld, the dark gray stuff. I purchased a few studs let it cure overnight.

That was five years ago and I have not had an issue with the coming out.
Old 04-15-2017, 09:12 AM
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good to know Snoopysvet. Hopefully I'll have the same luck.
Old 04-15-2017, 09:33 AM
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Originally Posted by Snoopysvet
I have a 1978 with a rear spoiler, a few of the bolts rusted away. I used standard J B Weld, the dark gray stuff. I purchased a few studs let it cure overnight.

That was five years ago and I have not had an issue with the coming out.
They make two types of JB Weld . The standard and the quick set . They work the same except that the quick set has to be applied fairly fast and can be used sooner. The end result is the same . A very good fix for just about everything.

Last edited by bj1k; 04-15-2017 at 09:35 AM.

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