Originally Posted by
dsbrantjr
For avoiding electrolytic corrosion on dissimilar metal joints, (alu post/steel frame, BBs, pedals, etc.) I use Tef-Gel which was specifically designed for such service:
TEF-GEL - Ultra safety systems - Home page I would avoid copper- or nickel-containing anti-seize pastes, which are generally used for high-temperature service like exhaust systems, because they introduce yet another metal into the mix.
Edit: If riding in almost exclusively wet weather, especially if road or ocean salt is present, very frequent maintenance may be required to deter rust and corrosion even with the best anti-seize treatments.
I've been using a copper mounting paste for over a decade - no problems on bikes, nor motorcycles.
Reason not to use it would be the price - cheaper alternatives are available, ones that are not that resistant to high temperature (which isn't needed for most bicycle related applications). But the "another metal into the mix" makes no problems whatsoever.
For the salty and wet weather - copper "grease" has turned out exceptionally well - you could put the bike in the ocean for a year and the coated parts won't get stuck!
All the grease/oil leak in time, but a thin layer of (soft) copper remains, and allows for easy unscrewing when the time comes.