I am in the same situation as Frank with TC everywhere and a tube stash. Been helping someone with their system who if he follows through and sends me his leftovers I might try NPS-1260. Until then, as best I have been able to determine it is a knock-off of an earlier version of TC with the main difference being the carrier. TC was in paste form that dried to a thin inert film. NPS remains oily, and this oil may or may not prove to be a long term problem.
In any case the active ingredients are similar enough it should work both on physical contact points as well as coated over the outsides of things like fuses. As I have said before many of these fuses have active ingredients added to the outside. The gray blob on Synergistic, the little bits of adhesive on QSA. Coating with NPS or TC work similarly. Just be careful to leave a gap or you may wind up with a short!