[NostalgiaRadioTime]

I've been using it for years on radios. Works good to flush out dirt in a tuning capacitor and also for cleaning dirty grimy chassis. I take one of those 1/4 or 3/8" thick dark green scouring pads like you probably have by your kitchen sink, spray some Gumout on the pad and work it over the chassis. Follow up by spraying some on a rag and just wipe off the grime the scouring pad got loose. Obviously it won't do anything to remove rust but if you just have a dirty dusty chassis it works well.