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> JB Weld on Por 15, Stick??
AvalonFal
post Sep 12 2008, 12:57 PM
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Getting ready to JB Weld a few nuts on a Por 15 treated surface and I'm wondering how well the JB will stick to the Por 15. Anybody have any experience or thoughts??

Paul
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Katmanken
post Sep 13 2008, 01:31 PM
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When building aircraft structures, the sequence is glue first, paint second.

Why?

Because your glue joint is no better that the surface the glue sticks to.

A JB weld of metal to metal may take a bazillion pounds of load without failure, but I bet the metal to JB to POR to metal bond is WAY less in terms of load.

And, POR does bubble and lift when coated by other materials so your Epoxy based JB may eat the POR paint making for a really crappy bond.....

Try it and see. JB formuation may be different enough to not affect the POR.

Ken
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