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Why do we need PTFE (Teflon) tape for PLUMBING? | GOT2LEARN

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White Teflon (PTFE): amzn.to/371Gvzf
Yellow Teflon (PTFE): amzn.to/3eMuOyU
Pink Teflon (PTFE): amzn.to/30bFmDF
Green Teflon (PTFE): amzn.to/3gUztkd
Stainless steel Teflon (PTFE): amzn.to/2Mwaaam
DISCLAIMER: Got2Learn is NOT responsible for any damage done to a property of which the plumbing wasn't done by a professional, I do not recommend doing your own plumbing if you are unsure about what you are doing, always hire a LICENSED contractor when doing any type of plumbing so you can be covered by insurances if something does happen, these videos are for entertainment purposes only!

Опубликовано:

27 апр 2023

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Комментарии : 181

@mrtimjitsu Год назад

it's also hydrophobic, which also helps to prevent leaks

@ANewEvilRising Год назад

Always thought it was meant to fill in the gaps between the threads and fitting as to prevent leaks. I usually use it with that specific purpose in mind but I'm a noob

@jimsyhammond Год назад

Teflon is thread sealant not a lubricant. If you used a water based lubricant to get the fitting on more it would still leak without teflon

@solstice420 Год назад

I've noticed that as well. If you just use dope and no Teflon you'll get way more leaks.

@mann_idonotreadreplies Год назад

Teflon has a lubricating effect, Einstein wannabe.

@matthewbim10 Год назад

This guy has never used pipe dope alone

@SeeDemDeh Год назад

@@matthewbim10 true . it’s job is definitely not primarily as a lubricant at all, it primarily works as a seal. He got it the wrong way round.

@shaneallard6008 Год назад

@MANN lots of things do doesn't mean they are suitable for making a seal your cutting oil is a far superior lubricant than Teflon. Teflon is used because it's primarily purpose is to seal not lubricate.

@ns3v3n Год назад

When I was learning how to solder and redo my valves, I would watch this channel, I learned so much from this channel. The narrator makes it interesting so kudos to them!

@SeeDemDeh Год назад

PTFE works both as a lubricant and a sealer. In many applications ( industrial and otherwise) it’s primary job is to reduce friction. But when it comes to plumbing , friction is not our only concern. Try using some oil (WD40 for eg. PTFE by the way) on a fitting and tighten up and see if it will not still leak. Although when you take apart a fitting you may not see the PTFE there it still was there covering the nicks on the threads and falling between the threads , providing a seal. So in this case seal is it’s primary job and lubrication secondary.

@andrew1898 Год назад

Teflon does not work as a lubricant. Once you cover the threads and start twisting it your adding mechanical friction to that joint as it rolls the Teflon up. Dope is a lubricant and PTFE dope is both. So many day 3 helpers thinking they know!

@Ellron23 Год назад

Wd40 is oilyish but is not an "oil" or lubricant at all

@Ellron23 Год назад

@@andrew1898 ptfe tape definitely makes joints easier to tighten, because it reduces the coefficient of friction between the mating surfaces. Call that what you want, but typically we call compounds that reduce friction lubricants. Don't belive me? Spin together a bare pvc joint as tight as you can with your hands. Then tape the male thread and try it again. You'll notice you get farther with the taped joint, because Teflon tape acts as a lubricant in addition to providing some sealing action.

@bloodleader5 Год назад

@@Ellron23 You don't need tape on PVC threads, though. The seal on those threads is achieved by hard tightening to deform the threads. However, with metal fittings that do not deform in this way, you need tape to seal the threads. It is NOT about lubrication, this guy doesn't know what he's talking about.

@SeeDemDeh Год назад

@@bloodleader5 exactly👌🏾

@-cz1vp Год назад

Tape plus pipe dope is the og way!

@RGV2300 Год назад

Hail the teflon, it is such a noble item.

@paulh2981 Год назад

I always knew to put teflon tape on plumbing fittings but I thought it was just to seal it up. It's amazing to see how much farther you can screw it on with the tape.

@Dirty_white_boy Год назад

You can use the back of your finger nail to feel the rough edges. Spark plugs are NPT and have edges like this except for NGK, Bosch, and a few other manufacturers. Great explanation in this video of the importance on Teflon. Never use this stuff on thermostats sensors on your car if you want accurate readings. 😂

@Edinburgh_Bathrooms_Kitchens Год назад

Ive heard this before but theres no way a metal thread is sealing without Ptfe so that has to be its primary purpose.

@ag95mboy Год назад

Nah the pressure created on the tapered threads creates the seal. Haven’t you used the copper unions that seal without rubber gaskets? Metal on metal can be watertight, but it’s just difficult. Teflon has the one of the lowest (if not the lowest) friction rating of any solid. That’s why the amount of wraps is fairly important as well, but not super crucial unless you’re doing outside of the 4-6 wraps.

@jordanhenshaw Год назад

False.

@stevebabiak6997 Год назад

Wow, back in the day “pipe dope” AKA thread compound was used to seal threads. This short is misleading due to failure to mention things like this.

@Edinburgh_Bathrooms_Kitchens Год назад

@@ag95mboy ok stick some radiator tails in without PTFE or a thread sealer and then we shall talk.

@sivansharma5027 Год назад

@@ag95mboy why would the amount of wraps, aka the thickness, be important if it wasnt primarily used to provide a seal? Surely just one round of teflon tape would be fine then right?

@yitang1122 9 месяцев назад

Luckily I bought this for my washing hose. It worked amazingly!!

@bingobunga8995 Год назад

Wow this is an awesome explanation!

@dr.kennethnoisewater26 Год назад

Well forget what he told you cause he’s wrong

@shaneallard6008 Год назад

wrong, its primary purpose is to seal, to lubricate is 3rd, its secondary job is to be dissimilar to what you are using it on, and that is what prevents galling and seizing. if you think depth is what seals just yourself the cutting oil it is a far superior lubricant than Teflon and you will get greater depth, however odds are it will leak.

@ObservationofLimits Год назад

Cutting oil does not have a lower friction coefficient

@shaneallard6008 Год назад

@Benjai yes it does teflon is about .04 cutting oil starts at about .028 and can get down below .01

@charlespelletier9621 Год назад

The only way is old school. Old school is the best school. Dope only. The threads make the seal not the dope or tape. Dope is used to lubricate the threads so they make up tighter. People always use to much tape and it acts like a wedge and makes is so the threads can't be made up tight enough. And Teflon is made for not stick purposes and when you get threads expansion and contraction the joint can loosen. Learned this from the OG ole school pipefitters from NYC. Local 638 👍👍👍👍

@shawnhuk Год назад

This is 100% incorrect. (machinist here). Standard 60° vee threads have a built-in leak path at the major/minor diameter of the threads. There is space between the crest and valley of the threads. If it doesn't have this then the threads will bind and be unable to threads together. Google a 60° vee thread form. The Teflon tape is to fill the voids left by the thread form. This is a layman's explanation.. threads are actually very complicated.

@dogwalker666 Год назад

Definitely needed on Air pipes to seal.

@Deeznuhts Год назад

Teflon tape is primarily a sealant, although the lubrication is an added plus. It’s a brand of thread seal tape lol

@erikarice6859 Год назад

No it’s not, Ptfe tape is a lubricant, Teflon tape is proprietary. Have you ever ordered cheap plumbing stuff from Amazon, and the Ptfe tape feels like it’s made out of foam? Other countries don’t care, the us consumer expects DuPont level Ptfe tape, the thinnest in the world.

@mann_idonotreadreplies Год назад

It's both sealant and lubricant. You guys are dumb af lol

@shaneallard6008 Год назад

@@erikarice6859 no its primarily a sealant if you think lubrication is more important use cutting oil and see what happens it is a far superior lubricant than Teflon.

@ObservationofLimits Год назад

@@shaneallard6008 it is definitely not primarily a sealant. Try using it on 20k psi fittings and tell me how much tape is in the threads after pulling it apart. Zero. It might work on sloppy joints you don't tighten enough, or plastic joints. But that's not its primary purpose.

@shaneallard6008 Год назад

@Benjai Oh, do tell what what uses a tapered thread at 20k psi?

@customsolutions7167 Год назад

Did anyone notice that when he hand tightened with and without the tape the same number of threads where exposed. Not really a lubricant it's a sealer ..

@ObservationofLimits Год назад

It's most definitely a lubricant. The primary source of sealing on tapered pipe threads is the taper and deformation.

@customsolutions7167 Год назад

@@ObservationofLimits yeah primary, but imperfections in pipe manufacturer.. make that less than 100 % and as a tradesman you can't rely on less than 100%. Therefore use the tape ...

@dennislinden3657 Год назад

What about the taper? That's a very important part of the joint.

@Got2Learn Год назад

I talk about that in this video: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-G4EijapY7vw.html&ab_channel=Got2Learn

@acesegura0694 Год назад

PTFE tape is good but if it receives a lot of reoccurring disturbances, like Frequently used ball valves. You'd be better off with rector seal or some equivalent, no tape. Tape seals good on pipe lines and things never being moved. But it never cures, ball valve fittings getting frequently used need more adhesive otherwise fittings will turn on you, no pun intended, get some good treadsealer that can cure, I've been using blue monster pipe thread sealant with no problems, kinda best of both worlds but if you're slopy probably bring some gloves, your lady will appreciate it

@Gruntled2001 Год назад

I love your channel, man.

@Got2Learn Год назад

😎🤜🤛

@Allan.m432 Год назад

What pipe material would you choose for you house in an area that doesn't freeze? Copper, pvc, or pex?

@jordanhenshaw Год назад

That’s what she said.

@Got2Learn Год назад

LOL.

@aaronbaraiya3692 Год назад

Great timing, man. i was just wondering why tef tape is used

@calculator1841 Год назад

You literally tightened the non-taped thread deeper that the taped, 4 threads left versus 5. It's a sealant first and foremost.

@Netherlands031 Год назад

yeah, the demo showed that his explanation was wrong

@cconnon1912 Год назад

Rectoseal changed my life. 😂

@donaldappelhof2059 Год назад

Nice looking threads! Not like that import pipe my boss buys.

@richardhaas39 Год назад

In Spain they used horse hair.

@VladoT Год назад

Yes and No. There are fittings made from brass that are suppose to seal by preasing their mating surfaces together. We are then using a little bit of teflon on the threads as a lubricant. The second case is iron fittings that are rough and unprecise that can only seal by applying more teflon tape on the threads using the teflon as a lubricant and as a sealer.

@daltondunn7856 Год назад

Even lock tight lowers the coefficient of friction but that doesn't mean it is the purpose of it... it helps to seal the threads

@sivansharma5027 Год назад

Actually, no, loctite slightly increases the friction on the threads. Look up videos about using thread lockers and torquing

@Kbnb2077 Год назад

It will leak without teflon, teflon stops metal on metal so yes. But teflon is so water or gas doesn’t ride the threads.

@PlumbNutz Год назад

With the same amount of force the pipe will thread significantly deeper when it is lubricated.

@H4zZ4rDGaming1 Год назад

it's primary purpose is DEFINITELY to seal, not lubricate. it does both things, but the sealing is the objective

@KevinMartin314 Год назад

Definitely a sealant. This guy's got it backwards

@bucktheplumber4636 Год назад

Nope it's a lubricant the taper on the threads is the sealing process...

@bucktheplumber4636 Год назад

Lol nope you do

@KevinMartin314 Год назад

@@bucktheplumber4636 if it's just lube go ahead and try installing your fittings without it 🤷 not my problem if your a hack

@anotherguy9402 Год назад

@@bucktheplumber4636Google "thread seal tape"

@loginavoidence12 Год назад

good pipefitting requires you to set your jaws, debur your threads, and usually you'll have one good known piece as a go-gauge to spot check em. i know some guys that will always knock off the factory threads on a pipe because the factory doesn't care how they come out and are defective every now and again. also stainless steel fittings are the absolute worst to work with.

@Joe-nr9xf Год назад

Stainless anything is tbh. We use stainless with our CNG stuff and it strips super easy. Stainless fasteners are also a bitch

@loginavoidence12 Год назад

@@Joe-nr9xfya, we use stainless fasteners literally everywhere. the worst part being, i have some stupid arse coworkers that say "all you need is to put one little drop of anti sieze on the corner of these stainless 5/8" bolts" next time we came back to that i told that guy "YOU get to take those off. good job." they were completely galled. if it were possible to use brass pipe fittings and mid alloy steel bolts, it'd make everything a lot easier on all of us

@jamesjulian Год назад

If this was true why do knipex and other manufacturers make a device THREADED ROUGHING PLIER . It’s to fill threads up to stop fluids and gas from leaking.

@salehselan3026 5 месяцев назад

I over used teflon that broke off the inner shutt off valve component 😂😂

@SwapPartLLC Год назад

Talk about not having a clue. Most manufacturers literally call it thread sealing tape or thread sealing PTFE. It right on the packaging.

@knucklessg1 Год назад

Teflon, good for construction, bad for cooking.

@gregoryv.zimansr4031 Год назад

I have learned the hard way that fittings made in china have really rough threads. I always use pipe dope and Teflon tape. No leaks then.

@aquacaloris 6 месяцев назад

You do not need PTFE (PFAS) to seal your threads, you can use good old hemp fiber : it's better then Teflon to prevent leaks and you give your money to famers and agricultural factories, not the petrochimical company Dupont.

@Got2Learn 6 месяцев назад

True!

@ACoustaDC Год назад

Should you use pipe dope and ptfe at the same time?

@solstice420 Год назад

Absolutely. Tape first, then dope.

@mbpark270 Год назад

Nope dope 1st then tape

@Got2Learn Год назад

I typically add dope on top of my tape, never the opposite.

@mbpark270 Год назад

@@Got2Learn If applied properly both ways you won’t have leaks but it is messy putting the dope 2nd especially if ur working with a partner/ground guy who’s handing u pieces.

@Got2Learn Год назад

@@mbpark270 I saw both ways on the jobsite, I guess it all depends on personal preference in the end 🤷‍♂️

@64maxpower Год назад

I never knew that, go figure

@Got2Learn Год назад

😉

@memo_mauserlorettini5979 Год назад

In my country old masters use Cannabis rope's file for this ....

@rickywinthrop Год назад

If only it wasnt so toxic. I use it many times a day and what with all the new science out there regarding its safety as a "foreewr chemical" I often worry about the cancer risk. I wonder if theres a non toxic alternative? Oakum?

@tinman1955 Год назад

I tried screwing on a pipe fitting but it was uncomfortable....so I still use a mattress. 🤣

@infernaldaedra Год назад

My biggest concern is the actual safety of PTFE over time.for example teflon pans kill birds when you cook near them

@erikarice6859 Год назад

Ptfe when heated to cooking temp releases cfc’s, not when exposed to water below 212, I had the same concern.

@solstice420 Год назад

I'm thinking the bigger concern is the stuff they add to the water at the treatment plant then the Teflon tape which doesn't really contact the liquid in the pipe. Additionally Teflon tape would rarely be used on domestic water pipes.

@MattScofield Год назад

Teflon has links to pfas offgassing

@shawqijumaa119 Год назад

Usually. How many turns of tephlon tape should aplay on threads.?

@chrisshih5780 Год назад

Whatever it says on the directions of the teflon tape you have. Usually 3 full covers is the minimum.

@Got2Learn Год назад

3 to 4.

@shawqijumaa119 Год назад

@@Got2Learn thanks.

@ObservationofLimits Год назад

@@Got2Learn You ever watch Jorg Sprag make pneumatic crossbows? I saw him using some 10k fittings and he said 20! wraps. I was laughing my ass off.

@charlesviner1565 Год назад

👍

@RagingDong Год назад

It should screw in less if you have put the right amount of teflon/loctite/hemp onto a fitting. Scratching the threads will help the loctite etc not push put of fitting.

@ag95mboy Год назад

Hemp/jute seals the threads, Teflon mainly lubricates

@SeeDemDeh Год назад

it’s job is definitely not primarily as a lubricant at all, it primarily works as a seal. He got it the wrong way round.

@ObservationofLimits Год назад

No. He doesn't. You clowns just have never done industrial level work. Pull any joint apart, there's no tape down in there. It gets squeezed out while you tighten it. Ptfe tape also doesn't cure. On high pressure systems, any small bit in the roots will eventually get pushed out. Yellow PTFE is designed as a "sealant" on low pressure gas systems (can't use white). But it's again just a backup measure on a

@SeeDemDeh Год назад

@@ObservationofLimits What are you on about ? PTFE works both as a lubricant and a sealer. In many applications ( industrial and otherwise) it’s primary job is to reduce friction. But when it comes to plumbing , friction is not our only concern. Try using some oil (WD40 for eg. PTFE by the way) on a fitting and tighten up and see if it will not still leak. Although when you take apart a fitting you may not see the PTFE there it still was there covering the nicks on the threads and falling between the threads , providing a seal. So in this case seal is it’s primary job and lubrication secondary.

@marconotonfacebook3480 Год назад

Right, we could expect teflon - a very smooth surface - to help turning...??? really.... And for turning the thread deeper in...that will work without teflon ...but it won't seal. This a load of BS.

@NeoMK Год назад

Dope it, Teflon it, dope it and tighten. Done.

@hotrodpaully1 Год назад

dope it and forget it. no need for the Teflon or second coat. never have I seen a good doped pipe leak.

@NeoMK Год назад

@@hotrodpaully1 You've never worked on pressure vessels with 6 inch NPT plugs.

@danfarris135 Год назад

Throw that teflon tape away and get a bottle of Rector seal #5

@markroberts7001 Год назад

I prefer pipe dope. Or regular dope if your offering

@fubar5163 Год назад

Who is Julio???

@Got2Learn Год назад

Me?

@fubar5163 Год назад

@@Got2Learn lol saw it etched on your pipe wrench.

@Got2Learn Год назад

Good 👀's 😅

@fubar5163 Год назад

@@Got2Learn Keep up the good work on the channel buddy. Hopefully RU-vid is taking care of you.

@Got2Learn Год назад

Sure is, but I gotta take care of it too, thanks FUBAR!!! 🤜🤛

@vodaizvor6586 Год назад

hemp is waay better.

@Ryanwolson12 Год назад

What the heck are you talking about hahaha

@pjplumber2146 Год назад

Not for anything but nominal pipe thread. Not slip joint. Not compression. Not flare. Not garden hoses. Not supply stops. Not supply nots. Again. Only nominal pipe thread.

@GrampalettasCamp Год назад

I use it to insulate galvanically different threaded materials to stop galvanic corrosion. For example a SS screw in aluminum

@youngrav2311 Год назад

So many pros in the comments 😂

@Mad.Man.Marine Год назад

Wrong. It most definitely is a sealant. If you actually knew about threads and the way they are designed you’d know that even if you crank that fitting down with a ten foot pipe on the wrench it will still leak without a sealant. The crest never goes all the way to the root. There is always a machine tolerance. So even if the thread didn’t have any chips or imperfections it still wouldn’t seal.

@ObservationofLimits Год назад

On an open root thread, the taper allows for the connection to deform, which is the primary sealing mechanic. On an actual high pressure system, all the Teflon in the world won't seal the joint if you haven't tightened it enough. Go pull any pipe joint apart, there's no ptfe tape in the roots. You'd use actual dope/sealant that cures.

@gregkasza1925 Год назад

Try bar soap.

@ricklee827 Год назад

Pipedope Teflon then pipedope equals no leak. Rector seal number 5 for the pipe dope

@Got2Learn Год назад

The GREAT DEBATE 🤣🤣🤣

@ObservationofLimits Год назад

Just pipe dope. Gasoila or gtfo. Although loctite and rector are good too.

@erikarice6859 Год назад

Not kinda like a Teflon pan, Teflon was created by the DuPont company. Ptfe tape is the generic version, but it became so popular, Teflon tape is how it’s known.

@camerongover8459 Год назад

Farming engagement by purposefully saying wrong information so there are more comments on the video.

@ObservationofLimits Год назад

Y'all are crazy and ignorant if you think its primary job is sealing. Pull any joint apart. You maybe have a little teflon in the last 1-2 threads. The other threads are all bare. Dope's primary purpose is to seal. It adheres and fills the root and then cures. Tape never cures.

@aomedina3844 Год назад

Also, the main job is to seal because TEFLON compresses and extrudes into the small crevices. Sure it lubricates too to some extent.

@JohnDoe-qz1ql Год назад

He said the Opposite. It seals by allowing the joint properly tightens, by lubricating the threads.

@shaneallard6008 Год назад

@@JohnDoe-qz1ql he is wrong main job is to seal.

@ObservationofLimits Год назад

@@shaneallard6008 it's not. Watch the thread as you put the joint together. It all gets pushed up to the top. It maybe seals the last thread or two. It doesn't seal the whole thread like dope that actually cures. If you were steamfitting with tape you'd be fast out of a job.

@shaneallard6008 Год назад

@Benjai if your tape is being forced out your doing something wrong either too much tape, bad threads, or wrong direction.

@dr.kennethnoisewater26 Год назад

You are just wrong ser.