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Thread: Thread sealant

  1. #1
    Join Date
    Jan 2001
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    768

    Thread sealant

    What thread sealant do you guys use. Have had issue with 410a

  2. #2
    Join Date
    Dec 2009
    Location
    Bristol NH
    Posts
    229
    Either leak lock or red loctite. Always loctite on mimisplit flares.

  3. #3
    Join Date
    Sep 2003
    Location
    Western PA
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    1,359
    Local 449?

  4. #4
    Join Date
    Jul 2010
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    So-Cal
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    580
    leak lock

  5. #5
    Join Date
    Dec 2009
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    maroon lazyboy
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    1,049
    Quote Originally Posted by boilerman856 View Post
    Either leak lock or red loctite. Always loctite on mimisplit flares.
    We just put a dab of oil on the minisplit flares. Why the locktite?

  6. #6
    Join Date
    Jan 2011
    Location
    greenville , sc
    Posts
    718
    Quote Originally Posted by hvac17011 View Post
    What thread sealant do you guys use. Have had issue with 410a
    ive been using blue monster lately i havent had any issues....
    catch a man a fish , feed him for a day.
    teach a man to fish , ruin a good business opportunity.

  7. #7
    Join Date
    Jan 2001
    Posts
    768
    I have a leak on a drier fitting on 410 unit. Wast sure if leak lock was rated for that

  8. #8
    Join Date
    Dec 2009
    Location
    Bristol NH
    Posts
    229
    Quote Originally Posted by knave View Post
    We just put a dab of oil on the minisplit flares. Why the locktite?
    I have found flares with small leaks a year or so after install. Figure the loosen up with vibration and temp cycles . A few drops of red271 and no moreloose flares.

  9. #9
    Join Date
    Sep 2008
    Location
    Western PA
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    25,758

  10. #10
    Join Date
    Dec 2009
    Location
    maroon lazyboy
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    1,049
    Quote Originally Posted by jpsmith1cm View Post
    410a is supposed to use a different flare than the standard.

    Particularly mini-splits.
    hmmm i hope the sorry excuse for flares on the factory linesets are not an example of this

  11. #11
    Join Date
    Feb 2005
    Posts
    284
    i prefer locktite 515 and also use nylog

  12. #12
    Join Date
    Feb 2007
    Location
    Central NJ
    Posts
    519
    i despise that blue leak lock !!!! its garbage, it is overly used by techs that are overly confident in the product and not enough in their technique (in this case taking the time to make a good flare). the factory made flares on mini split line sets are not good enough for r410a systems, the install guys at my company use these and then us service techs have to go back and fix the problem! cut the damn tube with a good tubing cutter, ream the inside of the pipe carefully and oil the tip of your flaring tool before making a decent sized flare!!!!!

    i would use zoom spout oil over leak lock any day of the week!!!!!!

    you should use Nylog for all refrigerant threading, its the best product for the job!!!!
    You have to pay your due's before you pay the rent!

  13. #13
    Join Date
    Feb 2007
    Location
    Central NJ
    Posts
    519
    Quote Originally Posted by n-e-w Jerz! View Post
    i despise that blue leak lock !!!! its garbage, it is overly used by techs that are overly confident in the product and not enough in their technique (in this case taking the time to make a good flare). the factory made flares on mini split line sets are not good enough for r410a systems, the install guys at my company use these and then us service techs have to go back and fix the problem! cut the damn tube with a good tubing cutter, ream the inside of the pipe carefully and oil the tip of your flaring tool before making a decent sized flare!!!!!

    i would use zoom spout oil over leak lock any day of the week!!!!!!

    you should use Nylog for all refrigerant threading, its the best product for the job!!!!
    leak lock hardens, the fitting ends up leaking anyhow, then you have to scrub the hell out of the threads to make the repair. i know installers couldn't give two about it because they never have to see the job ever again. if your a service tech, do you and everyone else out there a favor and stop using that crap!!!!
    You have to pay your due's before you pay the rent!

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