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JB Weld Quick v JB Weld

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Old Jan 12, 2005 | 12:33 PM
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JB Weld Quick v JB Weld

I have been using JB Weld Quick and found its fast setting formula (about 4 minutes) to be very handy. So when I ran out, I went to town and found only the regular variety (sets in 4-6 hours).

For the first time, it failed me. I was trying to repair a shelf in a refrigerator and didn't have six hours to keep the door open.

Question: Why even bother with regular JB Weld? Is there some trade-off with the quick set I don't know of?
 
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Old Jan 12, 2005 | 12:37 PM
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wow, i didnt even know the stuff actually worked. every single time i use the stuff the "weld" ends up cracking and breaking. i cant see how the things the label says it can do is true.
 
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Old Jan 12, 2005 | 12:41 PM
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I suppose one has to be selective in the application. I've found it very useful, but I'm not using it to, say, weld a hitch to a vehicle.

It is a top of the line adhesive, compared to girly super glue, IMO.
 
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Old Jan 12, 2005 | 01:19 PM
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i've actually been using the stuff in a can, i have no idea what it is called b/c the name has come off,. the can has to be 20 years old, but it's a yellow-orange glue that you add a white harderner and it's turns into a rock, while sticking to anything it touches. thinkin about it, it may be the fiberglass stuff, but i cant confirm that. crazy stuff.
 
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Old Jan 12, 2005 | 01:48 PM
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This stuff is awesome.
 
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Old Jan 12, 2005 | 01:53 PM
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Originally Posted by furball69
This stuff is awesome.
Have you used any of those 3M products outside of their body work applications, such as fixing a stupid refrigerator shelf?
 
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Old Jan 12, 2005 | 01:59 PM
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JB weld is just an epoxy adhesive system with "fillers" mixed in to make it easier to drill etc and give it color. 5-minute epoxy has a cure accelerator in it. The fast cure time results in a lower strength bond.

3M has a number of automotive adhesive products that work very well.
 
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Old Jan 12, 2005 | 02:04 PM
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Originally Posted by Torque1st
The fast cure time results in a lower strength bond.

3M has a number of automotive adhesive products that work very well.
Is there any way to gauge how much strength is lost with the quick variety?
Twenty percent, say?

Are you using those 3M automotive products around the house?
 
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Old Jan 12, 2005 | 02:57 PM
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Contact the manufacturer for a specification sheet.

I have used a number of 3M adhesives around the house and shop. The commercial products are usually higher quality than the consumer variety.
 
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Old Jan 12, 2005 | 08:05 PM
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Also the service temp is 200 for the quick and 400 I believe for the regular. When used on a properly designed, cleaned joint with time to cure at the right temp it is a fantastic product.
 

Last edited by Sberry27; Jan 12, 2005 at 08:07 PM.
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Old Jan 13, 2005 | 02:05 PM
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Originally Posted by billsco
Have you used any of those 3M products outside of their body work applications, such as fixing a stupid refrigerator shelf?
Yeah, the one with the red sticker and black component will stick to anything and everything, and it turns into a hard plastic when it hardens. very cool stuff. I actually refer to is at the autobody mechanics *nice* dream, but you don't have to be an AB mech. to find it useful.
 

Last edited by furball69; Jan 13, 2005 at 02:15 PM.
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Old Jan 13, 2005 | 07:55 PM
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I sell quite a bit of 3M products through my work. I don't like how big the Duramix tubes are, or how much it costs. If they made a smaller package that was cheaper for customers, it would be a lot easier to sell to customers that walk in the door.
 
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Old Jan 15, 2005 | 06:26 PM
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I've used some stuff called "quiksteel" and it works pretty good. Its a two part putty (the outer part is grey and the inner part is black) you slice a piece off (don't pinch it off or it will start mixing and the whole thing will set up) and then mix it up in your hands like playdough. When its all the same color, apply it to whatever your working on and it sets up in 4-5 min. Its saved me a alot of $$.
 
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Old Jan 15, 2005 | 06:35 PM
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I have used the JB Quick alot. It worked 99% of the time. I used it on the inside of a carburetor on a cycle. The float was held in by a pin through two small posts. One broke off. I used the quick to fix it. That was nine years ago. Still working. I have used other epoxies when I could not get the quick, and some were pretty good. But I get the JB if I can find it. Of course the best thing I now do is try to be more careful and not break things.
 
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Old Jan 16, 2005 | 10:40 PM
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Just another JB weld tip. If using it on metal i like to heat the metal to about 250deg F (heat gun) this burns off any moisture and lets the JB flow into the repair area and bond better
Just my 2 cents
Andy
 
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