Hi,
JB Weld is fantastic stuff..... for certain applications, but I'd be a bit nervous to hang my scope off it. It's main beauty over other similar epoxy resins is that it withstands engine temperatures. I have used it to 'glue up' a cracked block in my old Fiat tractor where oil was pumping out pretty badly. It doesn't leak now. I've also used it to glue up a cracked part on a cooling system. It's fantastic stuff to have in the shed, but it won't do everything.
Bruce
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