Heat shield compound is used when doing soldering (hard soldering, silver brazing) on a piece of jewelery or other assembly where you want to protect other completed joints from coming undone, or components such as stones when repairing a piece. Contenti has a 16 oz. jar of Vigor Heat Shield for $12.35 — that’s a lot of soldering.
I need to get some for myself as I had to resort to this…
when fixing a friend’s eyeglasses yesterday. Yes, I used potato as a heatsink. It worked fine, but I got a bit hungry.
Vigor Heat Shield [contenti.com]