Alloy into Ti …… Copperslip?

Evening All,

ls copperslip the best option for installing an alloy BB and alloy seatpost into a Ti frame?

I’m sure this is what I used years ago with my Hei Hei.

Thanks in advance,

Mark

I used Finish Line anti seize on my BB (which looks just like copper slip) and regular grease on my seat post (Thomson). Neither have got stuck. I try and remove the post annually and put on fresh grease, BBs usually die before they get stuck I guess. 😉

Copper slip in my ti frames for bottle cage bolts and bottom brackets.

I would use normal anti seize or grease. Adding more metals to the mix with Ti could potentially lead to galvanic corrosion once you add a bit of water and road salt.

I’ve seen most of a HL2 BB cup turned to dust along with the Dura Ace steel axle in it turned to swiss cheese (unusable after). The bike had been in storage with a bit of water stuck in a the BB for a surprisingly short period of time.

Just a heads up

ls copperslip the best option for installing an alloy BB and alloy seatpost into a Ti frame?

Yes.

Yes 

Yes.

Titanium does not react with salt or water – that’s its main selling point for me

You don’t need to use anything

Steel and aluminium is a different beast entirely

ls copperslip the best option for installing an alloy BB and alloy seatpost into a Ti frame?

The makers of Copaslip, Molyslip, might be able to help.

https://www.molyslip.co.uk/ask-the-expert/

Molyslip also make Ceramslip

https://www.molyslip.co.uk/products/anti-seize-and-assembly/ceramslip/

“The non-metallic nature also means that the risk galvanic corrosion due to the presence of dissimilar metals is eliminated.”

and

Alumslip

https://www.molyslip.co.uk/products/anti-seize-and-assembly/alumslip/

“ALUMSLIP is specifically designed for where copper needs to be avoided (for example where concerns of galvanic corrosion exist).”

http://www.pardo.net/bike/pic/fail-001/FAIL-102.html

Henkel the makers of Loctite say

http://henkeladhesivesna.com/blog/six-ways-to-keep-your-mountain-bike-going-with-loctite/

https://www.henkel-gcc.com/blob/674106/6ad2743ca50bf3c3c2dfc15116c9a181/data/2016-04-26-press-release-improved-loctite-thread-sealant-offers-powerful-performance.pdf

Specific bike assembly pastes also exist.

“Titanium does not react with salt or water – that’s its main selling point for me. You don’t need to use anything”

Ti is comparatively inert in seawater, the problem occurs when Ti comes into contact with other galvanic materials. Aluminium is at the opposite end of the index and if they contact in salt water then the aluminium will corrode.

Grease will isolate the two, and I’ve not had a problem with Copaslip; annual removal and checking (at least) is important too