JetLube SS-30, if you know, you know.

And if you don't, it's an incredibly greasy clay containing copper flake that's an incredible anti-seize and water repellent . It's used in applications like submarine cables and oil well drilling. It's also a hell of a antenna assembly compound when putting aluminum joints together. Added the top 10 feet to the vertical after running four more ground radials, so it was time to break this stuff out.

The downside is that it's like painting with Bunker C fuel oil. Best kept out in the sun and warm until ready to use. #HamRadio