JB Weld on Por 15, Stick?? |
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JB Weld on Por 15, Stick?? |
AvalonFal |
Sep 12 2008, 12:57 PM
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#1
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Member Group: Members Posts: 483 Joined: 3-July 05 From: Southern New Jersey Coast Member No.: 4,367 Region Association: MidAtlantic Region |
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 |
Katmanken |
Sep 13 2008, 01:31 PM
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#2
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You haven't seen me if anybody asks... Group: Members Posts: 4,738 Joined: 14-June 03 From: USA Member No.: 819 Region Association: Upper MidWest |
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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