Author Topic: bum batch of JB Weld?  (Read 1131 times)

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Offline gmonkey

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bum batch of JB Weld?
« on: July 29, 2010, 08:07:44 AM »
I was using J B Weld to fill the pits in my fork tubes.  Mixed up a small batch, filled in the pit, set it to dry.  Came back in a few hours to take a look and the JBW didn't look right.  It was too dark and the playing with the leftovers revealed that it dried to the wrong consistency.  Too bendy and soft and it was curing much slower than I remember it doing before.  Figured I got the mixture wrong, grabbed some acetone (or alcohol, don't remember) and rubbed the small amount out of the fork tubes to start again.  Long story short, it came out the same way the second time around.

Now it was a pretty small batch (a hefty toothbrush load from each tube) so it's more vulnerable to bad ratios but I was more careful the second time and I've never had it turn to crap quite like this before.  This was the first use of this JBWeld package.  I bought it because I couldn't find my old tubes.  Anyone ever get a bad batch of this stuff or am I just doing a consistently bad job of mixing it up?
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Offline bender01

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Re: bum batch of JB Weld?
« Reply #1 on: July 29, 2010, 08:16:50 AM »
Ive never had that stuff work, ever!!
 Permatex works better for me. Depending on what your doing.
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Offline 754

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Re: bum batch of JB Weld?
« Reply #2 on: July 29, 2010, 09:55:40 AM »
Do some test patches.. see how they turn out.

 I at one time used a lot of Devcon 2 part filler on fibreglass, to repair holes in drilling fixtures. pur some on a few bits of steel, man that stuff is tough and hangs on..
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Offline ev0lve

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Re: bum batch of JB Weld?
« Reply #3 on: July 29, 2010, 10:11:53 AM »
Think you probably just got the ratio wrong. Filling 2 holes I mixed up 2 successive batches, let it cure for a day and then went to grind it down with an angle grinder. One side, no problem the other turned soft with the heat and I was able to poke it out with my thumb. Same tubes 10 minutes apart. The only difference was me.

Offline MRieck

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Re: bum batch of JB Weld?
« Reply #4 on: July 29, 2010, 06:12:00 PM »
 I have never had a problem with JB. I have used it in intake ports etc. It has no expiration date too.
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