Have researched the Amber Anti-Corrosion.
Lew's new product, rather than thick...is thin. Wax-based. Light coating that permeates the aluminum substrate. Designed to adhere to fresh aluminum.
The good news....anti-corrosion. Aluminum in a salt water environment corrodes on its own. Quickly.
Look no farther than the legs of a T-top. Particularly at the weld joints.