Fishermen give this product good reviews for preventing oxidation of hooks in tackle boxes.
So I thought I'd literally give it the acid test - soldered wires to brass with a good dollop of Stay-Clean acid flux and didn't clean up.
The one marked "Z" gets a Zerust® strip. I dribbled a few drops of water on both and they will sit overnight.
The instructions say it won't help with acids or direct contact with water, but we'll see.