cbrstar, have not seen Zinn's position but it would carry weight with me as he is a practical "expert" in my mind. I come from industrial maintenance engineering where we used countless greases and oils in fiberglass and carbon fiber applications and never had an issue with good quality epoxy resins. I came by a '98 Trek 5500 years ago and and found the aluminum seat post welded in place from galvanic corrosion.