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    How many turns of PTFE tape for radiator joints?


    Hi All, Can anybody tell me, how many turns of PTFE tape is required on radiator joints? I have been told that it should be 10 to 12 turns, but I usually use 3 to 5 turns of PTFE on CH joints which hasn’t been much of a problem to me so far. (Apart from an occasional leak on the first test anyway!)
    Thanks, Harry 

    Asked by Harry on 5th Mar 2019
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    Best Answer

    Wilson Plumbing and heating

    "Hi Harry, I do use the 10 to 12 turns of PTFE myself and I’d recommend sticking with it – it’s never been a problem to me. Your mileage may vary a bit, but just check that it is biting as you wind it. At worst, start using 10 to 12 turns - if only to avoid your occasional leaks."

    Answered on 5th Mar 2019 - Member since Mar 2019 - report
    ADHS Plumbing & Heating

    "13 turns away from you and one for good luck


    Answered on 21st Mar 2019 - Member since Feb 2019 - report
    Cls Plumbing & Renovation

    "I would say around 5/7 that's confused the issue now for you but stick with my advice you will not go wrong."

    Answered on 19th Jul 2019 - Member since Jul 2019 - report
    Paul tanton

    "About 8 for me. Wind in and out half way. Jointing compound. Then wind all the way. Never leaks"

    Answered on 10th Apr 2019 - Member since Jan 2017 - report
    Doc's Property Solutions

    "On radiators I go for belt and braces approach 8 turns of ptfe and some liquid ptfe on internal threads. Never had a leak yet using both and as its not pottable water, why not ????"

    Answered on 30th Apr 2019 - Member since Jul 2018 - report
    ENLOUBAR Property Services Ltd

    "This one is down to experience I always use min 6 turns depending on if the thread is new and if there are any tension on the joint. I also use a tread paste in all instance as a fail save. I apply the paste on top of the thread.
    The best way is to get a plumber round to do the job that way there shouldn't be any great concerns for leaks"

    Answered on 4th Jul 2019 - Member since Apr 2019 - report
    A2Z Star Heating and Plumbing Solutions

    "I do 6-7turns myself. I also use jointing
    compound too as this tends to ensure solid
    leak proof joints, Hope that helps."

    Answered on 5th Mar 2021 - Member since Dec 2020 - report
    P Bradley Plumbing & Heating

    "5-6 turns is the recommended amount. 3 isn't really enough and 10-12 is too many. Personally I use jointing compound as well to guarantee leak proof joints."

    Answered on 2nd May 2019 - Member since Nov 2018 - report
    Miss Plumb


    I usually use between 3 and 5 also. Had no problems so far."

    Answered on 18th Oct 2019 - Member since Aug 2019 - report

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