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Author Topic: Testing popular glues.  (Read 896 times)

Offline Perry Rose

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Testing popular glues.
« on: January 20, 2019, 09:44:12 AM »
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Online Brett Buck

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Re: Testing popular glues.
« Reply #1 on: January 20, 2019, 08:26:59 PM »
One of my work buddy's Subaru daily driver is running around with no head gaskets, but JB-Weld (squeezed down to the requisite dimension) and bolts. Need to rebuild it? Too bad, get a new one.

     Brett
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Offline FLOYD CARTER

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Re: Testing popular glues.
« Reply #2 on: January 23, 2019, 01:06:27 PM »
JB Weld is often used on model engine mufflers.  It holds up well in this application.  It is not "forever" because liberal application of heat (from a hot air gun) will loosen JB Weld in case you need to break the bond.
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Offline GERALD WIMMER

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Re: Testing popular glues.
« Reply #3 on: January 23, 2019, 06:25:56 PM »
Hello
I seem to get very mixed results with JB Weld (original formula) on mufflers adding pressure taps or repairing leaks. Sometimes it just goes soft when run and falls apart other times it seems to harden with successive uses and stays good. I used to pre-harden it in a cool oven (212F or 100C) Araldite epoxy for the hour recommended with good results.
Interesting looking at the spec sheet for there general epoxy to see how temperature and age affect strength over time and Methanol degrades it see :
https://www.dawex.cz//userFiles/technicke-listy/huntsman/araldite-2011.pdf


Regards Gerald
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