I have some old tools that were packed by the manufacturer in sponge foam (like acoustic foam). The foam has deteriorated with age and, where it was in contact with the tools, it has bonded itself to the metal with the tenacity of epoxy.
I tried soaking in acetone and the crusty old foam just laughed. I'd rather avoid water-based solvents or chemicals that require a water rinse (e.g., paint remover). Can anyone recommend a (common) solvent that will dissolve and remove this stuff?
Thanks!