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Loctite 577 and 55 Review Honest Reviews 

Allen Hart
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Check out my new video • HOW TO MOVE A RADIATOR...
Honest product reviews, Loctite 55 and 577 Review
• LOCTITE 577 HOW TO USE... Loctite 577 Demo
• Loctite 55 Demo Gas Wa... Loctite 55 Demo
Today I wanted to do a bit of product chat, really. So these are a few products that I've used, I've seen them at a show a few years ago, I've used them ever since, to be honest.
So, we've a Loctite 577, and then we've got a Loctite 55. So, I just wanted to show you how to use them, and give you my opinion of them. I've also got another couple of videos, which I'll have the description below, and they'll tell you how to use them.
So, what we'd use this for, is metal to metal. So, what I personally use it for mainly is radiator tails. It's absolutely brilliant, and I mean really, really good. I've used all sorts over the years, PTFA, how many rolls should we do? Do we do 20, do we do 18? Well with this, all you do, ... just put a little bit on there.
Can you imagine that with your radiator, tighten your tail end. You don't actually have to do it tight and it will seal. I normally do, just nipple up with that. So that's four.
So the Loctite 577 is for metal to metal only. That can be used on gas, it can be used on water, essentially in whatever, so that's that one.
So Loctite 55, it's a little bit like PTFE when we open it. What we've got, we just got cord in there. What we do, we just put that around, just around the thread that we're using. Just put a few layers around there. Just four thread up. Then it's got a little clip on there where it just pulls off.
Then you can just tighten it on to there. That does plastic to metal, metal to plastic, whatever you want really. I find that, again, I find it brilliant. So I just wanted to give you some feedback.
A lot of times we go to these shows and we get promised, promised things that are amazing and they're not always as good as people make out, but my experience of these two products, so the Loctite 55 and the 577, I think they're absolutely amazing.
I use the 577 quite a lot and then I use the 55 every now and again when I can't use this. So any time I'm doing metal to metal, I always use the 577. Then if it's going to be plastic, any plastic on it, I'd use this one.
So I hope that was of some use to you. If you have a look in the link below, you'll see that there's a couple of videos and they are from the manufacturers. So one went to the installer show, I think it were, or one of the shows, they did some video demonstrations for us, and they're in the links below.
So you can have a look at them and see what you think. As I say, honest reviews as always from me. I think these products are absolutely amazing. Thanks for watching

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26 апр 2018

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Комментарии : 105   
@Watford4321
@Watford4321 Год назад
I'm doing all the plumbing from scratch on a house I bought at auction. This stuff saved me. Before I was redoing connections that moved when I tightened something further up the line that jarred a connection. Since I used both of these products no leaks, and I'm using plastic and copper combos all over the place. Amazing stuff.
@1989Chrisc
@1989Chrisc 5 лет назад
577 is brilliant as a refrigeration sealant. I use it on systems up to 40bar and pipes up tp 110 degrees c. Never had a leak on a thread fitting using it
@berkhanb
@berkhanb 3 года назад
Do you also apply PTFE besides 577 or do you use it on bare metal?
@normanboyes4983
@normanboyes4983 6 лет назад
Loctite has a comprehensive range of adhesives, sealants and threadlocking for use across the full range of engineering applications. You do have to use their product selector charts carefully and follow the instructions assiduously for bullet proof performance. Their technical help desk are really helpful too!👍
@AllenHart999
@AllenHart999 6 лет назад
Thank you for your comments and thanks for watching.
@tom_b_k
@tom_b_k 4 года назад
Thanks for the video Allen! I've used Loctite 55 before (on mostly brass fittings) and was happy with the results. Haven't had a chance to use 577 yet, but it looks interesting.
@Garciamrcool
@Garciamrcool 6 лет назад
Hi Alan, thanks for this review. I haven’t tried either of those products but will definitely give them a try now I’ve seen your review
@AllenHart999
@AllenHart999 6 лет назад
Garciamrcool Thank You for taking the time to watch, 👍
@rayc1503
@rayc1503 4 года назад
La-co slic-tite for me I've got through a few bottles of this stuff and it isn't cheap. I have 2 tubs of 55 aswell sometimes I use as an alternative. Jet-lube V2 plus has also always been a winner for me definetly have this in my plumbing sundries too. 👍
@markymark4049
@markymark4049 2 года назад
Love the way google subtitles say it can be used "sexually" at 1:36!! thanks for the video.
@800Viffer
@800Viffer 5 лет назад
"That goes there" isn't a great help when the camera is zoomed out so much that you can't tell what that is
@tomearnshaw8532
@tomearnshaw8532 5 лет назад
Went to a job were they had used hemp and red lead paint on the threads. Omg I could not shift um. Old school. When I did sprinklers all cotton and paste.
@DanielCurry1979
@DanielCurry1979 4 года назад
577 joints do come apart. Nothing like red lead when you're attempting to dismantle. I'm not sure it's even possible to dismantle a red lead joint
@pb871
@pb871 4 года назад
Hey Allen, great videos! I have a question about using liquid sealants or more to the point, what do you do if you need to re-work the fitting, say if you want to replace a rad tail. Do you need to clean the old sealant out of the internal rad threads (and if so how) or can you just apply fresh sealant to the new tail and screw it home?
@suejaneuk1681
@suejaneuk1681 2 месяца назад
The head on tap where you turn on and off, the screw keeps coming loose making it wobbly, can I use the 577?
@rickw4160
@rickw4160 5 лет назад
the 55 is great stuff, never used the 577. Where I am we have codes which prevent the use of the 55 for iron pipe for gas. Its also impossible to fine, have to special order online in limited supply. But the 55 is aces when you cant get the pipes to seal up, instead of tring to wrap candle wick.
@andreslootus7687
@andreslootus7687 4 года назад
Thank you Allen for your honest opinion.
@SuperWayneyb
@SuperWayneyb 6 лет назад
Been using both for years Buddy absolutely spot on. Great video as always 👍🤓👍
@AllenHart999
@AllenHart999 6 лет назад
Thank you for all your support as always Wayne.
@tomearnshaw8532
@tomearnshaw8532 6 лет назад
I find your vids really good. Thanks Tom
@AllenHart999
@AllenHart999 6 лет назад
Thanks for watching.
@davethornley1955
@davethornley1955 2 года назад
Bought some 577 on the basis of having seen a few videos including this one. One thing I am not totally sure on is does it work on parallel threads.? I have a couple of rads on which I need extending tails which come with parallel threads. I find that even wound fully into the rad there is a bit of movement of the tail.
@learnprogress6618
@learnprogress6618 4 года назад
Thank u , I hope Screwfix and tool station start to stock it
@darrenbutler1582
@darrenbutler1582 6 лет назад
Thanks for the Video, I currently use the 577 for compressed air fittings its great
@moxiemulgrew
@moxiemulgrew 6 лет назад
Alan, I do maintenance for a group of care homes, most building are over 20 years old, the water turn off's under sinks and toilets are all brass, I hate going near them, if you even look at them there leaking, its got to the stage most times ill isolate the water in the roof space, Im going to start swapping these out what valve would you recommend..? I plan on using one with a thumb turn as it may be less prone to problems in the future.?. whats the difference between a full bore valve in comparison to normal one-there expensive-..?. What make of TMV would you recommend for this type of application, one that can be easily taken apart and cleaned once a year.. Thanks in advance.
@jerryz673
@jerryz673 3 года назад
Hi Allen, can I use the water hawk joint compound with loctite 55, will it cause problem later?
@raybahadur6555
@raybahadur6555 3 года назад
Love your videos Alan, amazing knowledge, can I use the 577 on the olive side of the fitting.
@Martin-pr6ps
@Martin-pr6ps 6 лет назад
The 55 is the best. Quality stuff
@AllenHart999
@AllenHart999 6 лет назад
I like them both. Thanks for watching.
@dominichalliday8929
@dominichalliday8929 6 лет назад
I have used the 55 on 1 1/2" sprinkler lines, 15bar no problem. As good as hemp and paste. Love the vids.
@AllenHart999
@AllenHart999 6 лет назад
Thank you for your comments.
@heatpump8566
@heatpump8566 5 лет назад
When you use the 577, can you undo it at a later date ? or does it stick
@huzayfabham240
@huzayfabham240 3 года назад
It sticks, it normally comes apart by adding some heat
@c1bav
@c1bav Год назад
Hi Alan, can i use the 577 on a gas cooker hose to connect to rear of cooker
@Christosseventy7
@Christosseventy7 2 года назад
How easy is it to disassemble a joint with the 577
@AllenHart999
@AllenHart999 2 года назад
Not easy.
@19631241
@19631241 4 года назад
Hi Alan whats the curing time from applying to putting water in on a sealed system , chears.
@BABYCHAOS26
@BABYCHAOS26 6 лет назад
Never used Loctite before, what's the 577 like if you wanna remove rad tails once it's set, is it easily removed or is it stuck there for good?
@AllenHart999
@AllenHart999 6 лет назад
You make a very good point, once they are in you will find it hard to remove them, Thanks for watching.
@C00ltronix
@C00ltronix 4 года назад
I have no idea about Loctite 577, but I tried a Chinese anaerobic pipe seal adhesive which I believe might be similar. It sets very quick, once set you need a wrench and quite a bit of force to losen it.
@martinkane693
@martinkane693 5 лет назад
Hi never used it but was thinking of using it to fit out a HWC 28mm brass fittings.Will it do it?
@leeditchman8693
@leeditchman8693 3 года назад
Hi Allen, would you use 577 on a male iron to a shower valve?
@losteden
@losteden 6 лет назад
can you recomend one good for the oil pan plug? i have on pan with stripped treads and i try this one 577 and dont hold strong and leak... i buy now for giv a try the hight temperature 567. If you know better please share. thanks
@D_pawson
@D_pawson 6 лет назад
Only downside with loctite 55 is the new case they are in. Bobbin is forever popping out.(LOCTITE bring back the old packaging)
@AllenHart999
@AllenHart999 6 лет назад
I have only used this one, works ok for me, Thanks for watching.
@andriy-777
@andriy-777 5 лет назад
Absolutely agree. What I do just replacing the roll in old casing with the new one and happy days.
@dto8584
@dto8584 3 года назад
Great video Allen. You mentioned 55 is for metalplastic, but do you have experience using it for metalmetal as well?
@Mishibar
@Mishibar 3 года назад
It works with plastic-plastic, metal-plastic, metal-metal etc. It's good stuff and so easy to use and carry in a toolbag or pocket.
@Benzknees
@Benzknees 5 лет назад
That Loctite 577 looks really good. But how easy is it to dismantle a fitting where it’s has been used? Does it set hard, or remain soft?
@AllenHart999
@AllenHart999 5 лет назад
They are not designed to come back apart, I have never tried but I am guessing it will not be easy, 👍
@andrewalderson1
@andrewalderson1 5 лет назад
Allen Hart. It sets hard but can be dismantled easily, I’ve done it. In fact, it’s worth mentioning that once set, the 577 can’t be moved or the seal will break. The 55 can move easily, about a quarter turn apparently but I’ve not tried it.
@AllenHart999
@AllenHart999 5 лет назад
Thanks. 👍
@tom_b_k
@tom_b_k 4 года назад
I had no problems disassembling some fittings sealed with Loctite 55 a few days ago. Also as Andrew said, you can adjust the position a bit after installing. I've done that in the past for radiators in our house and had no leaks then (6 years ago). Also used this stuff on a 2" thread on a wood boiler.
@WaschyNumber1
@WaschyNumber1 2 года назад
Does it work for pcp air cylinder 4500psi 300bar 🤔
@lewigas290
@lewigas290 5 лет назад
So with the 577 used on rad tails how long do you have to leave it before you can subject it to water pressure? Thanks Allen. Great vids
@AllenHart999
@AllenHart999 5 лет назад
i normally leave them at least 10 mins. Thank you for watching
@oliversmith1798
@oliversmith1798 6 лет назад
looks good how long does 577 take to cure when used on rad tails?
@AllenHart999
@AllenHart999 6 лет назад
Normally takes about 10 mins, Thanks for watching.
@killerbean9911
@killerbean9911 4 года назад
@@AllenHart999 on their website it says that low pressure is instant, but it takes 24 hours for full pressure? I'm assuming that's mains pressure of 4+ bar? So not really ideal for outside taps for example, you're not going to leave it off for 24 hours then return the following day to test for leaks?
@GrahamDIY
@GrahamDIY 2 года назад
@@killerbean9911 i use 577 all the time. Inside. I had to use it outside and it failed. Not the product’ fault, user error on my side. I have since redone it and left outside tap off for 2 days and it worked fine. So using outside, seems to need longer and def 24h+ Makes sense really. 577 is great. Your videos are too 👏
@NDentressangle
@NDentressangle 4 года назад
Hi Alan, thanks for your video. Would this work to seal a G1/2 female to an R1/2 male, both metal
@AllenHart999
@AllenHart999 4 года назад
I am not sure what that is but it works metal to metal no problem. Thanks.
@dushk0
@dushk0 4 года назад
@@AllenHart999 you don't know what is G and R? Nice!
@steves1460
@steves1460 4 года назад
Dušan Barlík - Seems quite common that many don’t appreciate the difference between the two, but simply treat everything as BSP. Look on Screwfix website and they are just as bad and as for Toolstation, you get nothing more than the title i.e. the tech info is simply the part number. The only way to get more info is to look at the reviews, which is crazy. Maybe i am making sweeping statements here and tarring all with the same brush, but the way it’s done seems more based on, use this compound with that joint as they’re all 1/2” and so it’ll work...and it obviously does. But as an engineer in a different discipline, i am used to having detailed technical information to-hand and not used to having to fudge stuff to get it to work.
@minia4776
@minia4776 Год назад
Can i use 55 and 577 together
@woodbine66
@woodbine66 6 лет назад
Also, 577 has a shelf life, and unless you use it often, it goes out of date.
@AllenHart999
@AllenHart999 6 лет назад
I use it nearly every day but i forgot about the date, i will check next time i use it. Thank you
@impactodelsurenterprise2440
@impactodelsurenterprise2440 2 года назад
Whipped out my 545 last week after haven't been using it for 6 years. Still work a charm. Application was for LPG piping at 20PSI.
@mohamedmorgan676
@mohamedmorgan676 5 лет назад
Thanks for the video.
@AllenHart999
@AllenHart999 5 лет назад
Thank you for taking the time to watch my video.
@puzzchk
@puzzchk 3 года назад
Would you be able to fill the radiator straight after? 👍🏻
@AllenHart999
@AllenHart999 3 года назад
I did one today, filled it up in 10 minutes, no leaks
@puzzchk
@puzzchk 3 года назад
Cheers Allen 👍🏻
@crooksy88
@crooksy88 5 лет назад
Thanks for the video. Ar tha from Sheffield?
@MrMaff1975
@MrMaff1975 3 года назад
Cheers mate. Can you use the 577 with Glycol??
@AllenHart999
@AllenHart999 3 года назад
Not sure to be honest.
@MrMaff1975
@MrMaff1975 3 года назад
Ok thanks anyway.
@AllenHart999
@AllenHart999 3 года назад
@@MrMaff1975 I wouldn’t of thought there would be any issues but it’s worth checking
@dipdab530
@dipdab530 6 лет назад
Love 55, I may give 577 a go now, cheers
@AllenHart999
@AllenHart999 6 лет назад
The 577 is really good stuff 👍
@Wayoutthere
@Wayoutthere 2 года назад
I never use tape again, this works FAR better.
@robson197
@robson197 5 лет назад
577 has acreditate for sprinkler fittings?
@AllenHart999
@AllenHart999 5 лет назад
I am not sure but i do not see why not. Thanks.
@woodbine66
@woodbine66 6 лет назад
I'm sure it's good, but too much money. I'll stick with PTFE or Tru Blu. Thanks for vid, Allen.
@AllenHart999
@AllenHart999 6 лет назад
I havent used tru blu i will look out for it. thanks.
@woodbine66
@woodbine66 6 лет назад
Only seen it at Toolstation, Allen, 8 quid for a big pot, or they do a smaller one.
@AllenHart999
@AllenHart999 6 лет назад
I will try some if i see some for sale. Thank you
@ccmogs5757
@ccmogs5757 5 лет назад
LA-CO Slic-tite is another good product :)
@Lspoor6
@Lspoor6 6 лет назад
Where did you get them black fittings for the magnacleanse ?
@AllenHart999
@AllenHart999 6 лет назад
Lspoor6 I got one from the fernox rep.
@Lspoor6
@Lspoor6 6 лет назад
Allen Hart ok thanks 👍🏼
@dushk0
@dushk0 4 года назад
I have only seen leaky yet almost impossible to unscrew connections with Loctite 55, done by plumbers who use it solely based on recommendation in the store, cause that's "the new pro stuff". Tried to redo them myself, well...done with teflon tape or paste+tow in the end. Also speaks a lot about your expertise as a plumber if you use anything else than 2 layers of teflon tape or a specialty compound dope/sealant on a platic to metal thread. Unless it was done previously with Loctite 55 - then you sure as hell need to pack it with 20+ layers of teflon, like it was metal to metal but never that Loctite crap. Or just get a new plastic fitting in that case and do it properly. I understand that there are connections where either tow or tape are inappropriate but there is still choice other than this painful rope.
@TheDickPuller
@TheDickPuller 6 лет назад
I prefer the Screwfix Liquid PTFE, same stuff as the Loctite 577 but miles cheaper!
@AllenHart999
@AllenHart999 6 лет назад
i havent seen that stuff, i will look out for it. Thank you.
@woodbine66
@woodbine66 6 лет назад
Try Tru Blu at toolstation. Big tin for less than 8 quid.Best value of the lot.www.toolstation.com/shop/p32502?r=googleshopping&rr=marin&gclid=EAIaIQobChMIkYzRpaXq2gIViT4bCh2XAgJ4EAQYASABEgIzjPD_BwE
@steves1460
@steves1460 4 года назад
Liquid ptfe doesn’t glue the joint together though like this stuff and so i don’t think you can compare the two. Stand to be corrected though!
@TheDickPuller
@TheDickPuller 4 года назад
Steve S mate you’re talking shite, Liquid PTFE is an anaerobic glue, as is Loctite 577. Both glue the threaded joints together & both can be used to joint copper tube & End Feed fittings.
@martinkane693
@martinkane693 5 лет назад
Meant to say 577
@kristianvendramin
@kristianvendramin 5 лет назад
LOXEAL 58-11 is better. But Loxeal in isn't so expensive
@AllenHart999
@AllenHart999 5 лет назад
Never used it so i wouldnt know. Thanks for watching.
@GabrielKozsar
@GabrielKozsar 2 года назад
I use LOXEAL liquid sealant class 2 (w/o numbers) too. I guess it's the same methacrylate stuff loctite uses and others , it's cheaper than loctite and works the same. Teflon +0.20mm+ tape is not working with 1" bsp straight brass fittings , every one leaked on me, a little bump or rotating force and it leaks. Loxeal holds the fittings tight, resist vibrations and it works all the time. Only drawback is that sometimes you need a huge turning force to the sealant to yeld with 1" and above, but heat is my friend ;) . Using 250mm KNIPEX pliers wrench.
@davidharley1649
@davidharley1649 6 лет назад
100% Thank you Top man
@manjsingh6500
@manjsingh6500 3 года назад
👍
@robinIAZ
@robinIAZ Год назад
I don't trust commercial inventions.hemp is sacred. It has been working for 100 years.
@DalikAVR
@DalikAVR 3 месяца назад
But not with brass. The hemp is forbidden for brass fittings by manufacturers.
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