I think I can help. I am a gemcutter who uses a variety of
adhesives, including cyanoacrylates (Super Glue) and various epoxy
resins every day.
The super glue adhesives will all break down in acetone over a
period of a few hours. They will also break down in denatured
alcohol, usually overnight.
The two-part epoxies are pretty tough, and you didn’t mention a
There are variations in the chemical formulas and some of them are
VERY resistant, but all will break down with mehtylene chloride,
which is the main ingredient in commercial paint strippers. This
chemical is VERY toxic and should be used with adquate ventilation
like a hood or outside, away from pets and children. If you get it in
your eyes it can blind you and it is a carcinigen. With proper
respect, it is safe to use, as, after all, paint stripper is used
Just pour some in a glass container and drop whatever you have in it,
let sit overnight and it will be free. If you have one of the newer
and very powerful epoxies, gently warming the solution on a hot plate
until it boils (very low temp is required) will break the bond
quickly, although you may need to add more stripper as it boils
away. I’ve been doing this almost every day for almost 40 years and
I’m still here…oh, and it won’t hurt your silver.