carbon grease

Discussion in 'The Shop' started by jonKranked, Jan 12, 2018.

  1. jonKranked

    jonKranked Press Button, Receive Stupid

    Rep/Likes:
    338 / 2,877
    Joined:
    Nov 10, 2005
    Messages:
    50,223
    Location:
    media blackout
    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?
     

    Please register to disable this ad.

  2. canadmos

    canadmos Mater Slayer

    Rep/Likes:
    198 / 3,126
    Joined:
    May 29, 2011
    Messages:
    7,524
    Location:
    Canaderp
    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.
     
    • Winner Winner x 1
    • Useful Useful x 1
  3. jonKranked

    jonKranked Press Button, Receive Stupid

    Rep/Likes:
    338 / 2,877
    Joined:
    Nov 10, 2005
    Messages:
    50,223
    Location:
    media blackout
    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

    Rep/Likes:
    338 / 2,877
    Joined:
    Nov 10, 2005
    Messages:
    50,223
    Location:
    media blackout
    a google indicates both finish line and tacx are good pastes. have experience with either?
     
  5. StiHacka

    StiHacka Compensating for something

    Rep/Likes:
    300 / 2,702
    Joined:
    Jan 4, 2013
    Messages:
    9,144
    Location:
    i͓̽t͓̽ i͓̽s͓̽ fu͓̽l͓̽l͓̽ o͓̽f s͓̽t͓̽a͓̽r͓̽s͓̽
    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

    Rep/Likes:
    338 / 2,877
    Joined:
    Nov 10, 2005
    Messages:
    50,223
    Location:
    media blackout
    did you use a regular poly lube?
     
  7. KenW449

    KenW449 something stupid

    Rep/Likes:
    20 / 162
    Joined:
    Jun 13, 2017
    Messages:
    1,600
    Location:
    Floating down the whiskey river...
    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

    Rep/Likes:
    300 / 2,702
    Joined:
    Jan 4, 2013
    Messages:
    9,144
    Location:
    i͓̽t͓̽ i͓̽s͓̽ fu͓̽l͓̽l͓̽ o͓̽f s͓̽t͓̽a͓̽r͓̽s͓̽
    I don't use any lube. If you do, the post will slip.
     
  9. jonKranked

    jonKranked Press Button, Receive Stupid

    Rep/Likes:
    338 / 2,877
    Joined:
    Nov 10, 2005
    Messages:
    50,223
    Location:
    media blackout
    :doh:
     
  10. StiHacka

    StiHacka Compensating for something

    Rep/Likes:
    300 / 2,702
    Joined:
    Jan 4, 2013
    Messages:
    9,144
    Location:
    i͓̽t͓̽ i͓̽s͓̽ fu͓̽l͓̽l͓̽ o͓̽f s͓̽t͓̽a͓̽r͓̽s͓̽
    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

    Rep/Likes:
    416 / 2,583
    Joined:
    Nov 22, 2002
    Messages:
    35,371
    Location:
    Sleazattle
    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.
     
    • Useful Useful x 1
  12. jonKranked

    jonKranked Press Button, Receive Stupid

    Rep/Likes:
    338 / 2,877
    Joined:
    Nov 10, 2005
    Messages:
    50,223
    Location:
    media blackout
    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

    Rep/Likes:
    416 / 2,583
    Joined:
    Nov 22, 2002
    Messages:
    35,371
    Location:
    Sleazattle
    Tried being helpful, back to shitposting.

     
    • Like Like x 1
    • Funny Funny x 1
    • Useful Useful x 1
  14. jonKranked

    jonKranked Press Button, Receive Stupid

    Rep/Likes:
    338 / 2,877
    Joined:
    Nov 10, 2005
    Messages:
    50,223
    Location:
    media blackout
    wrong thread dude
     
  15. KenW449

    KenW449 something stupid

    Rep/Likes:
    20 / 162
    Joined:
    Jun 13, 2017
    Messages:
    1,600
    Location:
    Floating down the whiskey river...
    yup, just caught that. fixing now
     
    • Funny Funny x 1
  16. maxyedor

    maxyedor <b>TOOL PRO</b>

    Rep/Likes:
    20 / 214
    Joined:
    Oct 20, 2005
    Messages:
    3,048
    Location:
    In the bathroom, fighting a battle
    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

    Rep/Likes:
    338 / 2,877
    Joined:
    Nov 10, 2005
    Messages:
    50,223
    Location:
    media blackout
    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.
     
  18. Sandwich

    Sandwich just shake your rump
    Staff Member

    Rep/Likes:
    56 / 632
    Joined:
    May 23, 2002
    Messages:
    15,003
    Location:
    01776
    late to the party, but I used pork duhls carbon past to keep my shiny carbon post from slipping in my alloy frame.

    I also have carbon bars and an alloy stem, but haven't needed it there yet. I think. Maybe. It's really only to limit slipping and rotating on carbon part inside alloy clamps, I thought. I would probably use it on carbon/carbon as well.
     
  19. KenW449

    KenW449 something stupid

    Rep/Likes:
    20 / 162
    Joined:
    Jun 13, 2017
    Messages:
    1,600
    Location:
    Floating down the whiskey river...
    :stupid:
     
  20. jonKranked

    jonKranked Press Button, Receive Stupid

    Rep/Likes:
    338 / 2,877
    Joined:
    Nov 10, 2005
    Messages:
    50,223
    Location:
    media blackout
    Bump for a follow-up...

    Metal bearings for pfbb getting pressed into a carbon shell. Googling turned up info from praxis works that recommended loctite superflex rtv silicone adhesive for the interface (instead of lube or carbon paste). Anyone else know if this is the best solution or is there something else I should use?
     
  21. boostindoubles

    boostindoubles Nacho Libre

    Rep/Likes:
    117 / 1,156
    Joined:
    Mar 16, 2004
    Messages:
    3,697
    Location:
    Yakistan
    Around here, it's a bit challenging, but people are using elf jizz. Catching the fuckers, getting them to give up the jizzums, and then getting those jizzums into a convenient squeeze bottle. Its not easy but the local KOM hunters swear by it. It turns out Elves have really sticky ejaculate. Engineers and scientists think the technology is going to help put people on Mars.
     
    • Useful Useful x 5
    • Winner Winner x 1
    • Horns Horns x 1
  22. Nick

    Nick My name is Nick

    Rep/Likes:
    257 / 1,993
    Joined:
    Sep 21, 2001
    Messages:
    12,475
    Location:
    behind you, don't wait up.
    Wow.
     
  23. jonKranked

    jonKranked Press Button, Receive Stupid

    Rep/Likes:
    338 / 2,877
    Joined:
    Nov 10, 2005
    Messages:
    50,223
    Location:
    media blackout
    Most strava warriors I've met are content to just jack off to their bike on a scale but hey, I'm not one to judge. You do you man. Or an elf if that's your thing.
     
  24. boostindoubles

    boostindoubles Nacho Libre

    Rep/Likes:
    117 / 1,156
    Joined:
    Mar 16, 2004
    Messages:
    3,697
    Location:
    Yakistan
    There is a fever among the Strava Warrior, it cannot be described effectively here...
     
  25. KenW449

    KenW449 something stupid

    Rep/Likes:
    20 / 162
    Joined:
    Jun 13, 2017
    Messages:
    1,600
    Location:
    Floating down the whiskey river...
    Apparently i had a KoM i didnt know about until i lost it. It was when i rode my bike to work because the car was down.
     
  26. jonKranked

    jonKranked Press Button, Receive Stupid

    Rep/Likes:
    338 / 2,877
    Joined:
    Nov 10, 2005
    Messages:
    50,223
    Location:
    media blackout
    hey guys if i wanted jackass responses i would've posted this in the lounge.
     
  27. Westy

    Westy the teste

    Rep/Likes:
    416 / 2,583
    Joined:
    Nov 22, 2002
    Messages:
    35,371
    Location:
    Sleazattle
    If you haven't figured out what to do by now, there ain't much hope for you.
     
  28. jonKranked

    jonKranked Press Button, Receive Stupid

    Rep/Likes:
    338 / 2,877
    Joined:
    Nov 10, 2005
    Messages:
    50,223
    Location:
    media blackout
    go back to your spreadsheets.
     
  29. Westy

    Westy the teste

    Rep/Likes:
    416 / 2,583
    Joined:
    Nov 22, 2002
    Messages:
    35,371
    Location:
    Sleazattle
    RTFM
     
  30. jonKranked

    jonKranked Press Button, Receive Stupid

    Rep/Likes:
    338 / 2,877
    Joined:
    Nov 10, 2005
    Messages:
    50,223
    Location:
    media blackout
    man who shit in your wheaties today you grumpy old fuck
     
  31. johnbryanpeters

    Rep/Likes:
    223 / 2,112
    Joined:
    Sep 27, 2001
    Messages:
    23,472
    Location:
    Making moss sad in New Haven, Vermont
    Said the master of j.r.s..
     
  32. jstuhlman

    jstuhlman We noticed.

    Rep/Likes:
    306 / 2,764
    Joined:
    Dec 3, 2009
    Messages:
    7,309
    Location:
    Cackalacka du Nord
    sheesh. y u so worried aboyt grease? i just used a healthy shot or two of coppertone for headset, seatpost, bottom bracket and slathered the rest of the frame with it for good measure before hitting the whole thing with rattlecan clearcoat to seal it in.
     
    • Useful Useful x 1
  33. DaveW

    DaveW Space Monkey

    Rep/Likes:
    94 / 413
    Joined:
    Jul 2, 2001
    Messages:
    8,299
    Location:
    Karori, Poneke Te Ika-a-Maui
    I use the finishline one in the workshop at my bike shop.
    It's good.
    Also if you're not used to a carbon bike..... or even if you are, get a preset torque tool set to 5nm that has interchangeable bits (3mm, 4mm,5mm,6mm,T25 etc) just a small one that can fit in your trail side repair kit.
    I like the Birzman one at work and their multi tool that has it built in stashed in my hydration bag.
     
    • Useful Useful x 1
  34. DaveW

    DaveW Space Monkey

    Rep/Likes:
    94 / 413
    Joined:
    Jul 2, 2001
    Messages:
    8,299
    Location:
    Karori, Poneke Te Ika-a-Maui

    Yer nu rund here aintcha boy.
    :popcorn:
     
    • Funny Funny x 1
  35. Westy

    Westy the teste

    Rep/Likes:
    416 / 2,583
    Joined:
    Nov 22, 2002
    Messages:
    35,371
    Location:
    Sleazattle

    He shitposted in his own thread then came back and complained about shitposting less than 24 hours later.
     
    • Funny Funny x 2
  36. Toshi

    Toshi Harbinger of Doom

    Rep/Likes:
    172 / 1,116
    Joined:
    Oct 23, 2001
    Messages:
    23,316
    To his credit, he was drunk both times and probably blacked out in between
     
    • Horns Horns x 2
  37. Westy

    Westy the teste

    Rep/Likes:
    416 / 2,583
    Joined:
    Nov 22, 2002
    Messages:
    35,371
    Location:
    Sleazattle

    That is why I only post while blacked out drunk. It is just kind of an alternate universe where time is contiguous, but offers an alternate plot.
     
  38. johnbryanpeters

    Rep/Likes:
    223 / 2,112
    Joined:
    Sep 27, 2001
    Messages:
    23,472
    Location:
    Making moss sad in New Haven, Vermont
    So Vaseline?