Originally Posted by jdmartie
The surface area you talk about can you elaborate? Are you talking about the surface area of the post to the fender? Sorry just need details so i make sure i do this right. Thanks again
Surface area of the contacts means connection surface.
If you take a look at wiring connectors, especially 'Ring' terminals, you will notice the ring terminals have a lot of surface area for the contact point with the bolt terminal.
Some even have 'Teeth' in the hole to bite in and make better contact.
What happens in most cases is moisture and corrosives creep into the connection and cause corrosion, leaving you very little surface area for the connection.
The more connection surface you have, the more likely you are to keep a connection when this happens.
The 'Teeth' bite into the connection points and move with expansion & contraction, cleaning off new surface when they do.
If you have flat connectors, then you have to do something to keep the moisture and corrosives moisture carries out of the connections.
Thats where something like 'Never-Seize' comes in.
Copper based 'Never-Seize' carries conductive copper in the grease, both sealing up the connection, and keeping a connection when you wouldn't otherwise have one.
You MUST NOT use a conducive environmental sealer on MULTI PATH connections, like connectors for gauges, ignition, ect.
But it's fine for single connection points like your grounding post,
Or where the ground wires meet the front grill shell,
Alternator connection point,
Dash connection point,
Engine connection point, Ect.
(where it won't short out the second, third, or fourth ect. wires in a connector...)
For ignition wiring, dash wires, ect. where you have several wires going into a connector, you use DIELECTRIC GREASE to seal up the connector.
Dielectric grease is NON-Conductive and won't short out the other wires (make unwanted connections).
By filling the plugs full, then pressing them together, wiping off the excess once they are connected, you have sealed out the corrosives, and the connection will work indefinitely instead of corroding up with moistures penetrates.