Originally Posted by
elcruxio
Funny thing. I tried using CF paste in my carbon seatpost a while back because of constant slipping. Didn't work for some reason. Either I didn't know how to use the stuff or it just wasn't for AL-CF connections.
So nowdays I use toothpaste. Works like a charm. A little bit on the dirty side when disassembling parts, but I never do that anyways so no biggie.
The gel coat on some carbon seat posts sometimes is slippery. A tip there is...take 600-1000 grit sandpaper and lightly scuff the clear coat of the post that fits under the seat tube clamp. First be sure to figure out what seat height you like.
With a lightly sanded carbon seat post inside a carbon seat tube + carbon paste and 55 in-lbs or so of clamp torque...seat post shouldn't slip.