"AMuzi" wrote in message
news
On 10/11/2017 2:31 AM, dave wrote:
On Mon, 09 Oct 2017 15:08:12 -0500, AMuzi wrote:

On 10/9/2017 1:37 PM, Doug Landau wrote:
On Sunday, October 8, 2017 at 12:56:21 PM UTC-7, Ian Field wrote:
had to replace the saddle, so I put a few dabs of flour-emery powder
on the seat clamp. There was enough grip that I could get hold of the
saddle and twist the post out.

Now re assembled with copper slip anti seize compound.

Nice! But copper?


For a seat post, molybdenum base or copper base paste are fine.
The high temp aspect of copper is irrelevant but if that's the can he
has then that's the can he should use.

I understand the reason for lubing a seat post to be preventing
dissimilar metals such as aluminium post and steel frame tubes from
coming into contact and galling together. Does galvanic corrosion of the
aluminium with the copper element not cause problems?


I can't speak to the chemistry of it but in practice both molybdenum and
copper based antiseize pastes work well for seatposts and similar bicycle
applications. For auto exhaust systems, I use copper.

my first tin of coppaslip after not having any for a while, was for fitting
a new motorcycle exhaust system - but it works very well for all sorts of
things on a bicycle.

Generally speaking; any corroded part that gives me trouble dismantling it -
gets Coppaslip in the way back.

The local bicycle shop *ADVISED* me to Coppaslip the threads on the type of
sprocket cassette that unscrews as a unit.