Join Date: Feb 2008
Location: N. VA
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TefGel is good stuff. It's a teflon product. But it can be messy.
The method I am familiar with to prevent corrosion of dissimilar metals is to use anhydrous Lanolin. You can buy it commercially in the form of products such as Lanocote
. I see the Sailnet store sells it, as does West Marine. You can get more of it a little cheaper from your local pharmacy (a real pharmacy, not one of those little ones embedded in a grocery store) because it is useful for skin care too -- moisturizing and wind burn protection come to mind. Ask them for Anhydrous Lanolin USP.
I prefer Lanolin because it works great and doesn't seem as messy to me. I put it in the threads of turnbuckles and hose clamps. I will use it to coat screws I put in aluminum too when I get around to doing that. The theory behind it is the same as with TefGel -- fill the voids so electrolyte can't get in and start the corrosion process.
T. P. Donnelly
S/V Tranquility Base
1984 Islander 30 Bahama
Last edited by dacap06; 08-12-2011 at 04:50 PM.