Just bought some Morgan Blue Aqua Proof Paste because I can't get any dielectric grease anywhere. Here’s a link to their page:
http://www.morganblue.net/product/aquaproof-paste-200cc/Here’s some info thst I found:
Aquaproof is an improved paste, fortified with synthetic additives to reduce friction. This grease combines constant properties within a wide range of temperatures. It is especially developed for the lubrication and assembly of the seat tube, the bottom bracket, screws or headset. Also ideal for the use on forks. Prevents oxydation of metal parts. The paste is also suitable as sealant when rubber seals are missing. It adheres very well and is extremely water resistant.
Looks like it should work but perhaps someone can or should dissuade me?