My understanding is that tef-gel (which is what the manufacturer recommends) does not contain copper.
I’m not a specialist but I’m worried that the copper in the paste does hurt the aluminum because it is less noble.
Therefore, if grease remains in the aluminum part after the disassembly, it will create some corrosion.
On the other hand, why do these 2 pastes above contain both aluminum and copper.
Does anybody know if any of these products is a viable alternative?
If yes, why doesn’t the contained copper hurt the aluminum of the mast/fuselage?
Do not use anything with copper on aluminum it is meant for steel-steel connections, not dissimilar materials. Normal grease without copper for marine use is fine, get the PTFE loaded versions if you want something that is similar to tef gel.
Look for a product called Thixogrease, http://www.powerupusa.net/index.php/pro ... hixogrease if it is available in your location. I work in aviation and we now use this in joint areas where corrosion has previously been a problem using conventional products. From what I was told it was originally developed for the offshore oil and gas industry.
I'm assembling my foil with it, early days but so far so good.
go ahead and pitch that copper grease out, it's worse than nothing.
Just use a little bit of lithium grease or anti-seize and clean frequently until you get the right product.
Since you're here, you can probably just order tef-gel online.