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Thread: Loctite

  1. #1
    Join Date
    Feb 2007
    Location
    Central NJ
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    533

    Loctite

    What type do you use for sealing refrigeration fittings that leak? I've recently used 567. Acceptable? Better versions?
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  2. #2
    Join Date
    Jun 2004
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    St Paul, minnesota
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    1,252
    long time ago used to use leak-lock, but don't know if it's still available

  3. #3
    Join Date
    Feb 2007
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    Central NJ
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    They still make it. Will not use it. Mine as well use hydrolic cement

  4. #4
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    Sep 2007
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    NH
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    I use loctite 567 as well... I Try not to use leak lock for anything now a days.

  5. #5
    Join Date
    Jun 2009
    Location
    South Carolina
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    501
    went to one today where. at one time or another there was leak lock put on the where the piston is at in the ah. needless to say there is a restriction in the indoor coil and i could not blow it out with nitrogen.

    And damn leak lock was so tight i twisted the dam copper trying to break it loose f***.

  6. #6
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    Oct 2010
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    Anderson, South Carolina, United States
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    Nylog is where its at!

  7. #7
    Join Date
    Feb 2007
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    Central NJ
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    Quote Originally Posted by jtrammel View Post
    Nylog is where its at!
    I agree, but certain applications call for something a little more heavy duty. Had a couple of maytag service valves leak profusely ( they were wrenched, over heated during brazing or both). Slapped some 567 on em, sealed right up. Plus I don't believe it hardens or cures like leak lock

  8. #8
    Join Date
    Feb 2007
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    Fremont, Indiana
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    Quote Originally Posted by jtrammel View Post
    Nylog is where its at!
    I second this.
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  9. #9
    Join Date
    Sep 2007
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    NH
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    Quote Originally Posted by jtrammel View Post
    Nylog is where its at!
    Nylog is great for gaskets and flares and rubber o rings... But with indifferent threads like brass to steel I'm using loctite 567.

  10. #10
    Join Date
    Oct 2012
    Location
    Wisconsin
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    4,387
    I've used Leak-Lock, Loctite 567, Loctite 554, and Nylog, on threaded fittings.

    If you use Teflon tape at put Nylog over it, it seems to work.

    Leak-Lock works real good, but is difficult to get apart.

    Loctite 554 takes forever to cure, and is difficult to get apart.

    Loctite 567 seals real good, and is easy to take apart.

  11. #11
    Join Date
    Feb 2005
    Posts
    288
    I like Loctite 515

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