Originally posted by Keef
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Here's an example of JB Weld in underwater torches; swapping out the standard clicky for piezo switches in Maglite housings. because it's a viscous like honey going on it fills every little void for a hermetic seal and if it traps air in a void the weight of the glue displaces the air which bubbles to the surface prior to curing. I'm thinking if you held the barrel vertically in the vise while it cured it would do the same but you would have to do the barrel nut up at least hand tight or it will leak through the barrel/receiver join. If you want it thicker going on just wait a while after mixing before applying it. As you can see it resists pressure of several atmospheres. There's zero flex in it.
JB can be a little runny before curing so for bedding a bolt gun it might be hard to work with and obviously not use the 10-minute stuff, but in this barrel/receiver application I would use it.
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