How to free up a slug in an IF can?

[Radio Fixer]

I was told a few drops of old fashioned lighter fuel does the trick but have never tried it. If the formers are made of 'styrene then that might not be a good idea but you could probably try a dab or two on a cotten bud, on the top of the former first, and see if it dislikes it before going further.

Let us know...

Gary