How To Correctly Wrap Teflon Tape 

Thanks for sharing your experience with air and hydraulics. We definitely intended for this technique to apply to water line only. Thanks for watching

I agree with Cbmech. I'm a retired hydraulic system design engineer so when our prints went out to the shop floor, a note was always included to NOT wrap the Teflon tape over the end of the fitting/pipe. As the fitting is tightened inside the female fitting, any tape over the end of the fitting can be cut loose and end up in the hydraulic fluid stream. This is very problematic for downstream valves, especially close tolerance valves. And devastating for servo valves typical on CNC machine tools and close tolerance actuators.

@@masterflowplumbing9812 personally I wouldn't want pieces of tape floating in my water supply either. Plus, anything past the first thread would do little nothing to improve sealing.

@@nealvance8701 anything cut off and left in a pneumatic system, like in a truck air brake system, would tend to cause problems in the air valves. Step on brakes and a relay doesn't open......oops 😬 crunch.

You are welcome!

its just a stock thumbnail .. sometimes the camera can reverse the image but in this case i think your right ,, great eye

@@masterflowplumbing9812 you're right

Not the best way to introduce your channel!

I was going post ‘not per the thumbnail’

It’s clickbait for the perfectionists and those who notice detail

Thanks for watching

Thanks for watching

No set up time in the green stuff. It actually stays soft for years. Thanks for the compliments. And thanks for watching.

Glad we were able to help

Thanks for watching

Your welcome

Thanks for watching

Yw

Thanks Eddie.

You're welcome!

your not wrong.. on air or gas that would be correct ,reason for it is so loose teflon shreds do not travel to sensitive equipment like air tools and gas control valves ..for water pipe though i was taught the method in the video.. thanks for pointing it out i should have mentioned it in more detail

Your welcome. Thanks for watching

I don’t talk about paste too much because the video is simply about applying Teflon tape.

You have to stretch it tight as you wrap it

Yes always clockwise looking at the end of the thread

I’m sure it would be ok

I’m sure it would be ok. Thanks for watching

Thank you. This was our first video. We got better over the past two years.

I’ve. Ever seen that done. No idea. Thanks for watching

I always use dope on compression fittings threads. But not as a sealant. Rather is acts as a lubricant so I get a good torque on the fitting nut. Never Teflon a compression fitting

there are actually 3 types counting gas pipe teflon tape

More than 3 types , pink , green for different pipe like medical, oxygen etc

Of course. In fact the Teflon tape I use in this video should not be used for gas. They make Teflon for gas but it’s yellow in color. Any Teflon based thread sealing paste should be great for gas piping

Seems to be about personal preference. I have mosstly seen the linen fibers or loctite thread sealant depending on personal preference and and conveinience in the specific application.

You shouldn’t use hemp on potable water, but I must agree hemp provides a better seal

@@paulwoodward4999 Should you use PTFE on potable water? HAve heard alot of debate concerning wether you should even use PTFE in industrial lubricants.

@@rimmersbryggeri as far as I’m aware you can. I’m retired now and regulations change often. When I started plumbing in the late sixties we used hemp and boss white on potable water pipes. It formed a great seal. Back then most people were drinking from lead pipes and were for many years Too many regs now constantly changing

@@paulwoodward4999 Yeah I know. The old guys like the linen (flax) fibres they use here. But I gueess mostly on radiator pipes. I like the heavier ptfe or anareobic/water curing thread sealant depending on how difficult the space is to get into. I live in sweden so regulations might be very different from where you live. Whave used iron and copper pipes for a very long time as far as I know. They did use asbesthos reinforced ventilation pipes though up to the 60's.

Don’t matter how you look at it I’m wrapping clockwise. The thumbnail is incorrect on purpose

thanks for watching and commenting

Because your supposed to watch the video to learn the right way. It’s in the description.

Very well could be true but for the last 30 years it’s been impossible to get the Chinese to follow those thread standards lol. Teflon tape and pipe dope are very necessary in todays world

Never use tape on pvc

Just go to pvc manufacture website. Use pipe sealant

Thanks for understanding

If your using it on air or gas lines you should not but for water and drains I find it works best

Do hydraulics use pipe threads ?

@@masterflowplumbing9812 yes, in places NPT are still used, but becoming less prevalent, mostly on a return line circuits, but still Teflon contamination is contamination.

Clockwise is clockwise whether you’re left handed or right handed or standing on your head

@@paulwoodward4999 To people with no analytic skills, yes. Just hold a pipe (or just a pen) in your left hand and wrap it clockwise with a strip of paper with your right hand, and hold another pipe in your right hand and wrap it the same way with your left hand, then compare them and tell me they are exactly the same.

I don’t have to think about it. Whether I’m holding pipe in left or right hand all the same to me. Just look at the threads. Experience plumbers will know that

@@paulwoodward4999 But if an inexperienced lefthander learn from this video, he'll do it wrong all the time.

@@tkjho just wind the tape in the same direction of the thread it’s always clockwise. Easy whichever hand or experience

That’s why your supposed to watch the video. Thumbnails can be misleading

Sorry you disagree. I’ve been doing it for decades and never had that issue. Once again I’m amazed at how many experts in this subject are watching a how to video

I am also a licensed plumber got my ticket in 1969 ! Speaking from almost 60 years experience!

@@johnamerican1578 why would you be watching a how-to video with 60 years' experience. lol

Greg s I saw the clip on utube though I would watch maybe learn something new ! I have seen lots of changes since 1964 !! Not all good 👍

Yes, that's why I use teflon tape instead of pipe dope.I dont want sealant getting lodged in my sensitive valves and plugging them up.Never overlap tape past the threads it can break off over time and will get caught in something downstream.

That’s why you watch the video. It’s RU-vid not thumbnail tube.

👍you and I are speaking about before Teflon tape and pvc pipe?? We used what was called wicking!

So people who weren’t around in the old days are stupid ?

From what I’ve always understood is that the white Teflon tape can shred and travel to sensitive gas equipment. On gas pipe I always use pipe thread compound. I like a particular one called “green stuff” made by jomar. If you use Teflon tape on gas make sure it’s rated for that and meets local codes. The green stuff. It not only seals good but it also acts as an anti seize and allows for proper tightening by lubricating the threads before tightening.

@@masterflowplumbing9812 If you want to kill a hydraulic control system, use that white PTFE tape in the threads. Turns a simple job into a major.

Same here, but goes back further than that. Started seeing Shower Arm Drop Ells Split and Cracked. Do you know how hard it is to un-sweat that fitting and Sweat a new on? Used Rector Seal #5 back then today on something like that, Loctite PTS. There is a fitting I Religiously use Teflon Tape on. That’s the PVC Threads on my Saltwater Aquarium Piping. If you don’t, you can Cold Weld the Threads, when Tightening them.

I also use hemp on the pipe threads and I find it works better.

Thanks for watching.

lol

You sure about that? At 3.59 I’m am wrapping it in a clockwise manner we can debate the overlapping technique all you want. 30 years of doing this I’ve wrapped an awful lot of it hard to believe I’ve been doing it wrong. Opinions and techniques may vary. Thanks for commenting.

B Thomas is correct but not explicit. Masterflow wrapped both the blue and white correctly clockwise on the pipe, but with the white had the tape roll reversed on his finger. Often you hold the pipe still, or it is already installed, and you use your "spool holding" finger to wrap the tape around the pipe (instead of rolling the pipe). You have to "brake" the spool with your thumb and fingers of the winding hand as you wind to keep the proper tension on the wrap. If you hold the tape spool as in the white application, the tape unrolls too fast, is difficult to brake, and the spool gets awkwardly farther from the pipe with each turn. Holding it as done with the blue in this video, each wrap of your hand winds the tape back onto the spool as well which you can then easily release as necessary by loosening your "brake" to keep the proper tension, "paying out" just the right amount of tape, which is especially helpful in cramped installations. Agreed, it's surprising how many professionals have not discovered this difference. Since plumbing pipe threads are tapered, the thickness of the tape vs other sealers generally doesn't matter, the threads just don't screw as far in, unless you are not getting enough turns because of improper thread cutting. As you mentioned, I don't like the tape overlapping into the flow area because often the connection cuts the overhanging tape and it ends up stuck somewhere down the line. If your wraps have not sealed the joint, the overlap wedging into the first thread probably won't make much difference and the risk of a clog seems like a risk, with little, if any, return, that one doesn't need to take. Thanks for posting. This discussion will surely help many.

we are aware of that ..its not me wrapping it its just a stock thumbnail ..the wording is whats confusing. i think it needs a red x or something.the intention was to show the pic as a not to do thing

If it’s being used for drain or average water supply it’s not a concern. In hydraulic or air systems it certainly can be.

Your way is great if you can’t hold the pipe nipple in your hand. But if you can why would you do it your way. Your way is not the only right way. And yeah the thumbnail for this video is showing it incorrectly you win the prize for the 1000th person to notice that. Congrats

@@masterflowplumbing9812 I would still do it my way if holding the fitting. The sarcastic comment at the end of your reply was rude and unnecessary

@@paulwoodward4999 I’m sorry sir. I didn’t intend to hurt your feelings. Just trying to lighten the comments with sarcasm is all. I actually liked your exchange with the other viewer. Thanks for watching and my apologies for my sarcasm

@@68motopro no problem. I enjoyed my exchange with the other guy but found it frustrating after a while. Couldn’t deal with it if he were my apprentice

Thanks for watching

im curious what you would suggest? In 30 years of being a plumber i just know when you need it you need it.. shoddy Chinese manufacturing has led to loose tolerances on threaded pipe fittings.. We use to use just pipe joint compound when plumbing fittings were made in America. In the 1990s when American manufacturing was sold to china the use of PTFE tape really took of out of necessity.. you should write a letter to the Clintons

i did google your concern and found this info : People also ask Is PTFE tape toxic? (PTFE) is inert, barely reacts with anything, and is non-toxic.Jun 1, 2022

Viggo. The phone which I'm sure you're typing your concerns on. Emits frequencies that cause cancer in California. So I suggest staying out of California. ;)

@@masterflowplumbing9812 I agree, that PTFE itself is not toxic. As I wrote.. it is the factories that produce PTFE, that emits PFAS - so this is an important difference.

@@CharlesMaley1987 There is a reason why there is a lot of concern regarding PFAS - very good scientific research. But people that suggest mobile phones cause cancer is very much alone and not recognized by science community.

I agree 100%

I wrapped clockwise in the video. What’s with you people who only look at thumbnails

We are aware. The thumbnail is incorrect on purpose. You’re supposed to watch the video to learn the correct way. We don’t endorse going on RU-vid for the thumbnails. Watching the video is key.

Funny your about the ten thousandth person to point that out. Do you go on RU-vid for thumbnails ? Or the videos? Me? Im in it for the videos. But that’s just me. I do gotta admit I’ve been fooled by a lot of thumbnails myself.thanks for watching. Cheers!!

So it says that on the sealant you have so you think that means all sealants ? And rough the threads ? Lol. Who taught you that ? I’ve never heard of it.

Never heard of roughing the thread . Well I am glad I could teach the master plumber. That must make me the master of master plumber's.

Thanks for watching

Indeed, that what I am missing, rough the thread first.

Thanks for watching even though you already had the expertise.

Ding ding ding. You win the prize for the 100th person to notice the thumbnail is incorrect

You’d think they’d change the thumbnail by now

Copper to pvc! Galvanized to pvc ! Water softeners can have plastic threads but houses sometimes are copper. It’s called transition

@@masterflowplumbing9812 yeah, I get that, but I was speaking of metal (male) threads into plastic (female) threads. This connection is bad news and a rookie move. I thought you were a "master" 😜 Anytime you make the transition, male plastic into female metal is a stronger connection. Anytime I transition from copper to PVC, I use a Sioux Chief (copper/PVC fitting) instead of adapters.

Funny I’ve been doing this for 32 years never had an issue and yet here you are an expert on the subject and your watching RU-vid videos on how to do the very thing your expert at. Kinda ironic isn’t it ?

Maybe it's OK on domestic water systems, but I've been assembling hydraulic systems for over fifty years and we ALWAYS leave the first thread bare. As Paul B noted, a tiny sliver of tape can cause problems with valves and other components.

👍I agree 100%

Yeah good thing. Otherwise the word plumbing after my name would make zero sense. Troll.

lol. That made my night. Thanks for watching

Not a mistake. But thanks for watching.

@@masterflowplumbing9812 It’s wrong so I think mistake is appropriate .

Then why are you watching how to videos ?

@@masterflowplumbing9812 You don't have to be a jerk !! I also just watched for the hell of it but I use hemp on the pipe threads and I find it works better.

I also just watched for the hell of it but I use hemp on the pipe threads and I find it works better.

Thanks for watching

Thanks for commenting. But wouldn’t it be “expanded ” rather than compressed ?

@@masterflowplumbing9812 True, but that’s my poetic license way of saying it’s worth about two minutes. Too many other words in the video. Yet, over all, thanks for educating people.

You're welcome.

@@masterflowplumbing9812 “YOU’RE” welcome. (Damn autocarrot)

Yes I do