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Which Pipe Sealant?

Bob421 Member Posts: 5
I am curious which pipe sealant plumbers on this forum prefer when plumbing black iron pipe for use with natural gas,

Thanks, Bob


  • Rich_49
    Rich_49 Member Posts: 2,766
    Black Iron

    Permabond   LH050
    You didn't get what you didn't pay for and it will never be what you thought it would .
    Langans Plumbing & Heating LLC
    Serving most of New Jersey, Eastern Pa .
    Consultation, Design & Installation anywhere
    Rich McGrath 732-581-3833
  • Bob421
    Bob421 Member Posts: 5

    write up on Google search. It states that it will even seal a joint which is not fully seated due to positioning. I will have to check my local plumbing supply houses. Thanks for the reply Rich.
  • SWEI
    SWEI Member Posts: 7,356
    I'm learning

    Anaerobic sealants are pretty amazing things.

    Lots of manufacturers, but not really common here other than industrial and fire sprinkler applications.
  • jonny88
    jonny88 Member Posts: 1,139

    Hercules pro dope.this is my choice for years.
  • MikeL_2
    MikeL_2 Member Posts: 484
    teflon tape +

    Teflon tape & Megaloc for us........
  • bob young
    bob young Member Posts: 2,177
    pipe joint compound

    we use rectorseal, permatex or blue block to name a few favorites
  • ChrisJ
    ChrisJ Member Posts: 15,462
    Not a pro

    But I used Hercules Megaloc on all of my gas piping and it worked well.  I didn't use any tape as it seemed to be frowned upon.  So far that is the only dope I've found that I really like.
    Single pipe quasi-vapor system. Typical operating pressure 0.14 - 0.43 oz. EcoSteam ES-20 Advanced Control for Residential Steam boilers. Rectorseal Steamaster water treatment
  • icesailor
    icesailor Member Posts: 7,265
    Pipe sealant:

    Teflon Tape on everything. Now, only the Blue Monster stuff in the 1/2" x 1429" rolls. You don't loose them as easily. Rectorseal #5 on gas or any of the other kinds that you can't get off your tools or clothes or Rectorseal #100 with Virgin Teflon or MegLoc on potable water. Almost 100% leak proof.

    Heat is Teflon Tape with usually Rectorseal #5.

  • CTheat
    CTheat Member Posts: 5
    Pipe dope

    Rectorseal true blue. On copper male or female adapters i use blue monster teflon as well
  • SWEI
    SWEI Member Posts: 7,356
    I'll ask again

    Does anyone make 3/8" wide Teflon tape?  I'd love to have it for the small stuff.
  • kevin_58
    kevin_58 Member Posts: 61
    teflon tape

    I dont know about 3/8but they do make 1/4 in. I think markal makes it, its been a while since i had some. Now that you made me think about it i think i will order a few rolls.
  • SWEI
    SWEI Member Posts: 7,356
    Markal 434-44081

This discussion has been closed.