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  1. #1
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    Grease or anti-seize compound for bottom bracket?

    I'm replacing one sealed cartridge bottom bracket with another (Shimano UN-52 with a BB-6500) in a steel frame shell. Working from the Park website I removed the UN-52. Before installing the new bb they recommend (in this order) preparing the shell threads with:
    1. a thread locker if "the frame shell is steel and the cups are either aluminum or steel lockrings"
    2. grease or anti-seize compound
    The BB-6500 has an aluminum lockring. I've never heard of a thread locker or asc. I checked the prices and found:
    0.33oz (10ml) of Loctite 242 (the mentioned thread locker) is more than $10
    4oz (120ml) of Park ASC-1 is about $10
    3oz tube of Phil Wood waterproof grease is about $4.
    I don't know how much gets used when applying it but 10ml of loctite sounds like it would do just one installation.

    Are the other products that much better than grease?
    Are they necessary if you avoid riding in the rain (but do get caught occasionally)?
    Thanks

  2. #2
    Mmmmm potatoes idcruiserman's Avatar
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    10ml is a good sized tube of blue Loctite. A little goes a long way. I haven't bothered with loctite on the bb threads. I just use grease.
    Idaho

  3. #3
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    I had that same bb on my Reynolds 853 steel LeMond Zurich. Replaced it once, and serviced it several times in 4 years (it rains a lot here in Florida). Never used anything other than a generous quantity of Park Polylube 1000 grease.

    I do use anti-seize on my titanium Litespeed, tho.

    Bob

  4. #4
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    Quote Originally Posted by Bobby Lex
    I had that same bb on my Reynolds 853 steel LeMond Zurich. Replaced it once, and serviced it several times in 4 years (it rains a lot here in Florida). Never used anything other than a generous quantity of Park Polylube 1000 grease.

    I do use anti-seize on my titanium Litespeed, tho.

    Bob
    Litespeed says grease is plenty adequate for threaded fittings for it's Ti frames but many of us use either anti-seize (get it at an auto parts store at 10% of the price of the same stuff from a bike dealer) or teflon plumbers tape on bottom bracket threads.

    BTW, a 10 mm tube of Loctite will last most bike mechanics for years. You only use a couple of drops at a time.

  5. #5
    My bike's better than me! neil0502's Avatar
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    I use anti-seize on my Ti frame, too. I figure: can't hurt, might help.

    To get a bit more specific:

    Metal Type of Anti-Seize
    ========== ===============
    Stainless Steel -- Nickel
    Brass against steel -- Nickel
    Aluminum against steel -- Zinc
    Monel, Inconel -- Nickel
    Titanium -- Nickel
    General purpose -- Aluminum-Graphite

    http://www.sacskyranch.com/antiseize.htm
    http://www.saftlok.com/safteze/antiseiz/nickel.htm

  6. #6
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    Quote Originally Posted by HillRider
    Litespeed says grease is plenty adequate for threaded fittings for it's Ti frames but many of us use either anti-seize (get it at an auto parts store at 10% of the price of the same stuff from a bike dealer) or teflon plumbers tape on bottom bracket threads.
    +1

    BTW, a 10 mm tube of Loctite will last most bike mechanics for years. You only use a couple of drops at a time.
    I don't believe that the Loctite serves the same purpose as grease or anti-seize.

    Bob

  7. #7
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    Quote Originally Posted by Bobby Lex
    I don't believe that the Loctite serves the same purpose as grease or anti-seize.

    Bob
    It doesn't. My comment was in reply to the OP who noted that a 10 ml tube of Loctite cost $10 and might last only one installation. I wanted to assure him that it would last a lot longer.

  8. #8
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    Quote Originally Posted by neil0502
    I use anti-seize on my Ti frame, too. I figure: can't hurt, might help.

    To get a bit more specific:

    Metal Type of Anti-Seize
    ========== ===============
    Stainless Steel -- Nickel
    Brass against steel -- Nickel
    Aluminum against steel -- Zinc
    Monel, Inconel -- Nickel
    Titanium -- Nickel
    General purpose -- Aluminum-Graphite

    http://www.sacskyranch.com/antiseize.htm
    http://www.saftlok.com/safteze/antiseiz/nickel.htm
    This is the only thing my LBS uses on Ti frames. Silver stuff from NAPA. The smallest jar of the stuff will last several lifetimes.

  9. #9
    Dr.Deltron
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    Anti-seize is generally made to withstand high temps, so you would use it on exhuast manifold bolts (on your car )
    Grease on all bike threads, including BB threads (and freewheels) is your friend!

  10. #10
    Senior Member onbike 1939's Avatar
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    "Anti-seize" that is "copper grease" is also used to prevent seizing when steel is in contact with aliminium and does prevent the chemical process which causes binding. Alu bar stems and steel head tubes for example.

  11. #11
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    I wouldn't use thread locking compound, it could be very difficult to get it out in the future. Grease or anti-seize is fine.
    Il faut de l'audace, encore de l'audace, toujours de l'audace

    1980 3Rensho-- 1975 Raleigh Sprite 3spd
    1990s Raleigh M20 MTB--2007 Windsor Hour (track)
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  12. #12
    Senior Member royalflash's Avatar
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    I would also not use thread locking compound on the BB bearing as it can be difficult to get out even when grease has been used. Water and dirt can get in the BB and lock up the threads making it difficult to get the BB bearing out after a while.
    only the dead have seen the end of mass motorized stupidity

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    (well if he was alive today he would have written it)

  13. #13
    Spelling Snob Hobartlemagne's Avatar
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    Anyone use ONLY teflon plumbers tape with no grease?

    The first rule of flats is You don't talk about flats!

  14. #14
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    Quote Originally Posted by Hobartlemagne
    Anyone use ONLY teflon plumbers tape with no grease?
    Yes, I've done it a few times. It works just fine.

    One caveat, if you remove the bb for inspection, be sure to brush all of the tape fragments out of the threads before replacing the tape and threading it back in.

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