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carbon grease

Discussion in 'The Shop' started by jonKranked, Jan 12, 2018 at 12:45 PM.

  1. jonKranked

    jonKranked Press Button, Receive Stupid

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    is carbon grease required for carbon - alloy interfaces? (specifically alloy post in carbon frame). or is it only necessary in carbon-carbon interfaces? this is the first time i've owned a carbon frame and don't wanna mess it up until i take it into the sunlight.

    also, brand recommendations?
     

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  2. canadmos

    canadmos Mater Slayer

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    What bike did you get?

    I'm a total derp, but I think the carbon paste stuff adds friction. So that you don't risk over tightening the item to prevent slippage. Every post that I've had always says to use carbon paste.
     
  3. jonKranked

    jonKranked Press Button, Receive Stupid

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    scott spark 620. 2013. was the last year it was made in 26". found a good deal (aka hella cheap) and can transfer everything over from my current bike.

    fwiw i'll be using an alloy post in a carbon frame. i'm probably gonna give my joplin a proper service so i can run a dropper.
     
  4. jonKranked

    jonKranked Press Button, Receive Stupid

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    a google indicates both finish line and tacx are good pastes. have experience with either?
     
  5. StiHacka

    StiHacka Compensating for something

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    I've never had any issues with alloy posts in carbon frames including winter bikes ridden in extra shitty conditions.
     
  6. jonKranked

    jonKranked Press Button, Receive Stupid

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    did you use a regular poly lube?
     
  7. KenW449

    KenW449 something stupid

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    You should only need it if when you tighten the post to the correct NM and it still slips. Other than that, you should not need it.
     
  8. StiHacka

    StiHacka Compensating for something

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    I don't use any lube. If you do, the post will slip.
     
  9. jonKranked

    jonKranked Press Button, Receive Stupid

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    :doh:
     
  10. StiHacka

    StiHacka Compensating for something

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    Sorry if I am missing the sarcasm somewhere, I've been through a shitty week and my mind my mostly on an autopilot at this point.
     
  11. Westy

    Westy the teste

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    I think carbon grease generally has glass beads or similar particles in it to improve clamping carbon to carbon surfaces.

    A machined alloy post like a Thompson has good surface roughness that typically provides a good bite on carbon and does not need the friction grease.

    Make sure your post has a good anodized surface to prevent corrosion, grease as usual.
     
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  12. jonKranked

    jonKranked Press Button, Receive Stupid

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    google is failing me, info is all over the place.

    i've got a head cold and am puttering brain farts
     
  13. Westy

    Westy the teste

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    Tried being helpful, back to shitposting.

     
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  14. jonKranked

    jonKranked Press Button, Receive Stupid

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    wrong thread dude
     
  15. KenW449

    KenW449 something stupid

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    yup, just caught that. fixing now
     
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  16. maxyedor

    maxyedor <b>TOOL PRO</b>

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    FWIW on my Intense I had a severely seized seat-post because I put it in dry, after several days soaking it in PB Blaster and almost sending it to England to the only post removal specialist I could find willing to try, I got her loose. Called Intense, they said to use regular Park bearing grease, no slippage and no stickage since.
     
  17. jonKranked

    jonKranked Press Button, Receive Stupid

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    I talked to two friends who both still work at shops and they both said absolutely don't put them in dry. They both recommended carbon paste. Regular poly lube can affect the resin on the carbon.