[kragen]

I've heard that boiling epoxy in molten colophony for a few hours, like a long-cooked version of rosin potatoes, will also dissolve it. I haven't tried it myself. Colophony is much more expensive than sulfuric or nitric acid, but safer to handle (when not molten) and often easier to get.

[alwa]

I did not know that. Pine rosin is such lovely and versatile stuff. And sure enough:

https://m.youtube.com/watch?v=pIpxawdUb4I&t=30m18s

…plus it smells much better; and, as you mention, it’s useful for potatoes too!

https://bittersoutherner.com/feature/2022/the-elusive-roots-...

[kragen]

These slides from the talk say it only takes 5–20 minutes. I'm not sure it will smell better when you heat epoxy to the specified 320–360°. I'm interested in hearing whether anyone else has tried this.