I've always made it a practice to assemble electrical connections clean, tight, and DRY, then coat them with anti-corrosive compounds or paint if necessary. Nothing beats a solid metal-to-metal connection, with nothing whatsoever between the conductors. Isolating the outside of the connection from corrosive influence is great, but don't put anything between the pieces that carry the current.
Jerry


"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!