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Author Topic: J-B Weld for tanks?  (Read 1510 times)

Offline FLOYD CARTER

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J-B Weld for tanks?
« on: March 03, 2014, 02:41:57 PM »
Whoops!  Building a tin tank and now I can't get in through the front end cap to fasten the far end of the fuel pickup (copper) and uni-flow tube.  So....trying J-B Weld.  Any comments?

If it doesn't work, I'll start over and assemble the end caps in the proper order.

F.C.
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Offline Dave_Trible

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Re: J-B Weld for tanks?
« Reply #1 on: March 03, 2014, 03:02:34 PM »
Floyd I think it would work for a while at least.  Way back I used the stuff to make a muffler that held up pretty well and have molded venturis with it.  Really long term or permanently mounted tank I'd likely bite the bullet and start over.

Dave
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Offline GregArdill

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Re: J-B Weld for tanks?
« Reply #2 on: March 09, 2014, 05:33:37 AM »
A mate of mine used it as an emergency repair when the tank started leaking just before a contest.

It got him through the contest, but I don't know if he later fixed it properly or it continued to seal.

Unless you're going to make the tank accessible I wouldn't risk it. It is epoxy based after all.

Greg
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Offline Noel Corney

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Re: J-B Weld for tanks?
« Reply #3 on: March 10, 2014, 12:16:01 AM »
Have used the 24 hr. cure to assemble carbon fibre tanks, Never had a problem. Noel.
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Offline john e. holliday

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Re: J-B Weld for tanks?
« Reply #4 on: March 10, 2014, 09:36:18 AM »
If the area of the leak is cleaned inside and out it should work.  I have done it once, but I try to do better solder jobs each time.   Did use the J-B Weld on a car radiator a hole was punched into.   When I got rid of the vehicle several years later it was still solid, no leaks.
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Offline FLOYD CARTER

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Re: J-B Weld for tanks?
« Reply #5 on: March 10, 2014, 10:20:39 AM »
I, also, have repaired a leaking radiator with JB Weld.  But that is water (and some ethylene glycol) not glo fuel.

Anyway, my plane will have a hatch for access to the tank.  It will be an interesting experiment.

Floyd
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