Corrosion on threads & possible prevention???

[John Reynolds]

I’ve noticed that a lot has been said on this and other forums in the past about corrosion, and how to prevent it from occurring on threaded bolts, covers, etc. I just wanted to add in my little piece information about it, from the standpoint of an electrician, which might provide a little more to the common wisdom to the subject from a different perspective. <br />I’ve been working on rebuilding a Mark 55E. I used marine grade 8 oz. Brush Top Can of Never-Seez NMBT-8 $11.98 Ordered it at http://www.kgsupply.com/ but other places carry it too. On the can, it says it contains: aluminum, barium oleate, copper, molybdenum disulfide, graphite, zinc oxide, and other stuff. I know that in the electrical trade, we used zinc oxide grease if we had to make electrical connections between aluminum and copper. That prevent the galvanic (battery) action. It ought to work with water too; take a look at it this way: The voltage induced between dissimilar metals aluminum and iron while they are submerged in water has got to be a lot less than my electrical connections. By the way, using zinc compounds was not my personal preference at work but an industry standard.