I have had electrical connections outside for the most part during all seasons. I've not used anything like this and so far I recall only replacing a single connector which rusted more than corroded. I would think that waterproof connectors would be a better solution.
I used on every connector last year. Messy stuff... will never use again. It helps with water intrusion but also absorbs dust/dirt.. All of my connections have a paste of dielectric grease and dirt..
I would be hard pressed to suggest the Jaycar Conductive Grease. Other than being messy, if it migrates away from its original point of use you may find it has created a high resistance path between connections.
Both Jaycar products and the mentioned Permatex all have their uses. In industry I've used numerous electrical products in paste/liquid form and their common factor is the additional aggravation during repairs or when they get smeared somewhere one does not want or can't have them.
..agree. I've used deg on exposed outdoor (non waterproof) connectors successfully for 3 consecutive years. It certainly helps stop corrosion, but collects every piece of dust,dirt,insect in the vicinity. Having said that, without it the connectors would have been useless by now.
It's typically designed to be used in sealed items (switch contacts, wipers, slip rings etc) but does have it's uses when no alternative is available and are going to change the connectors at a later date.