I love my ThermoQuads, but one of them has a problem

Bill Crowell said
That's what the mechanic did the last time. I need to disassemble it and see where it has failed. I'll try to post a picture of it when I do.

Any particular kind of epoxy, or just the generic kind?

I use a product called "Seal All". Here is what it looks like.

https://www.amazon.com/Seal-All-380...hvlocphy=&hvtargid=pla-4584276296194402&psc=1

It works well. A little runny so be careful, but it works.