Will either cured Acraglas Gel or JB Weld steel survive the 1 hour @ 350 bake cycle?

Only if not, is there another epoxy that would?

Thanks!

i doubt it.

J-B Industro Weld Cold Weld Shop-Size box says:

"Not recommended for usage in heat in excess of 315 C or 600 F."

That is way more than the cookie baking temperature of 350 F.

Some uses suggested on the box:
"Foundries: Repair surface defects in casting, alter or repair patterns."

"Institution Maintenance: ... Stop leaks in high temperature lines and valves."

I'd say it is possible, but it sure is easy to soften up with a propane torch.
Try it. "Shelf life of over 20 years."

The industro weld stuff is a little softer than marine tex IMHO, but as mentioned it works well for high temp/high pressure applications. I have used it to bond linings to both clutch disks and brake pads and it holds up in those applications. I'd be pretty confident any gun parts glued on would up just fine.

I believe that permatex also makes a high temp epoxy called "cold weld" if that is easier to find.

I've patched alloy bottom metal with Devcon titanium putty (rated to 350F) and then baked it at 275F for 2 hours per KG's instructions for longer time lower temp curing.

Thanks very much, gents!

This would be on a 10/22 receiver.

If I run a test, I'll report.

I bake remington bolts with jb welded sleeves all the time (KG at 350)

My wife's step father used to repair cracks in cylinder head combustion chambers W/tapered, threaded steel plugs set in JB Weld that were then ground down.

If it can survive combustion chamber temps, then I think 350F for a few hours won't hurt it.