[Ron Ramirez]

To me, it makes sense to pot the older Philco tone control switches since the area where the capacitors are placed is exposed. In this case, I do not recommend using anything other than hot glue.

For bakelite blocks, there is no need to re-pot those.

Silicone is nasty stuff. It will eat copper. A fellow I know who is on the other forum and AK once told me a horror story about a box having been potted with silicone, and after the circuit in question stopped working, he inspected the box to find that all of the wiring had disintegrated from the silicone.

Hot glue is a good insulator and will not harm modern yellow film capacitors. The hot glue will hold those new tone control caps in place in the old Philco tone control switches and gives a more professional appearance. But to use it in regular bakelite blocks is superfluous.

One more thing. Don't use hot glue on modern electrolytics. Don't ask how I know.