thankyou ! that stuff non-electrically-conductive ? only ask cos ive seen some on ebay that are and i know the vector chassis transistors have to be isolated from the chassis.
Isolate them if the transistors require it. Thats stuff isn't (I use it) and I'm not sure I'd trust anything long term that says it isolates anyway. What happens when it eventually dries out and bakes? Can't imagine it would do much isolating then.