Loctite 243 Thread lock review Fake vs Genuine thread locker, Blue Bolt Stud Fast Fix Screw Glue Nut

In this video I will review and compare Loctite 243 medium strength thread lock made by Loctite Henkel (original german) loctite vs Fake Chinese copy of the original widely available online under the name LOCTTLF 243.
This is a genuine honest review and I have bough the products myself online. Thanks for taking your time to watch my videos. Much appreciated
If you want to purchase the Genuine Loctite 243 please click on the link below:
50 ml ebay.to/3cBYKO6
ebay.to/2IG9qh7
ebay.to/2wzPCZZ
10ml ebay.to/2v1HFMw

[@lazfrombudapest8053]

Exactly what I was looking for, thanks for making this video!

[@TheKeenMechanic]

No problem buddy. Thanks for watching and for your nice comment🤝

[@stefanduplessis124]

I bought the fake one by accident on eBay, did not even notice the name until I had it in my hands. Thanks for the video! Will be throwing this in the bin and getting the real one.

[@TheKeenMechanic]

Thanks for your comment. I am glad you found my video helpful. Much appreciated

[@Kumacattv]

Hey Keen Mechanic, thanks for posting this. As a 30+ year rep for Loctite I thought I'd correct a couple of things for you. Loctite was founded in the US. Threadlocker is made in our two plants located in the US and Ireland. What you experienced is what we tell customers everyday. You get what you pay for. The Chinese threadlocker did not cure or barely at all. That is the risk you take when trying to save a few bucks. You should always buy your Loctite from our AUTHORIZED distributor in your home country. Never buy it online unless it is from an authorized distributor who sells on line. Many of our local distributors have online web pages. NEVER buy it from Amazon. They aren't authorized. Thanks again. Good Luck.

[@TheKeenMechanic]

Hi David. Thank you for writing this message and for providing such detail about Loctite company, its origin and the location of the manufacturing sites. I am based in Northern Ireland, so musn't be too far from the Irish plant. I should have done more research as I might have missinformed my viewers a bit. I hope the viewers get the main point and make the right choice. Much appreciated 🤝

[@DrAlmurshidy]

So any product made in China is a counterfeit? There are many of them now carrying the exact name and the same bottle but they stated (Made in China(.

[@Slavko_Husam]

what about "MADE IN INDIA" products purchased from amazon? fakes? Thanks!

[@TheKeenMechanic]

Not sure buddy. You have to do a bit of research🤝

[@f9qo]

Wanting LOCTITE, I made a mistake ordering on line and what came was the Chinese produced LOCTTLF 243. I was disappointed in receiving a 'fake', but seeing what the results would be by using it, the bond is quite strong between bolt and nut, such that although I could loosen with hand tools, I was afraid that the force that was required to loosen might shear the 8mm bolt, it was that strong a bond. The residue on the bolt from the stuff is white. Recently I purchased a Henkel branded LOCTITE that is sold at a hardware store in Japan (my location), and though I assume that it is the real legit formula, on the bottle it also says 'made in China'.

[@TrackItYT]

Glad someone did a video on this! I had fake Loctite which smelt like blue solvent. Same conclusion, in the bin.

[@TheKeenMechanic]

Hi there I did another test, which sadly I didn't record on camera. What I did was actually I put the fake stuff on a bolt and nut and left it for 2 months and the stuff was still sticky and blue. It never hardened like the Genuine Henkel Loctite. Thanks for your comment and for watching my channel. 🤝

[@rickc2222]

@@TheKeenMechanic that was going to be my next question. I ordered this on aliexpress 100 days ago and it just arrived today - it looked different from loctite brand so i searched and found your video....was hoping maybe it just took longer to cure. I got a refund thankfully for it taking so long to arrive. I won't be paying for it now after watching your video - thank you!

[@TheKeenMechanic]

@@rickc2222 Hi @Rick C My Granny once said "we are too poor to buy cheap son" 😁. It is not worth taking the risk with the cheap stuff especially if you are going to use it inside an engine. Thank you for watching and for taking the time to write a comment.🤝

[@user-ug6sv2tl5f]

OMG, I even don't notice that the name is different on the fake one. Thank you for helpful video,bro!

[@TheKeenMechanic]

You are welcome buddy. Thank you for watching and always pleasure to see your comments👍

[@reelyology]

Thanks so much! I was skeptical about some cheap Loctite in the Malaysian market. It had to be fake, your video proves em. In Malaysia they're not as delicate to sell as Locttfl, but with exact spelling Loctite. The fake ones about 1/3 of the price.

[@TheKeenMechanic]

Hi there. I wanted to do the test so I can see how the fake Loctite performs vs the Genuine Loctite made by Henkel-Germany. The test shows all you need to know. I personaly decided to put the fake stuff in the bin as I don't think is worth the risk. You can find the fake Loctite here in the UK and it is spelt Loctite too, but has some chinese writing on it. I hope to have helped others to recognise the Genuine bottle from the fake. I am glad you found it helpful and thank you for watching and for writing a comment.

[@reelyology]

@@TheKeenMechanic I will share your video on my FB page. I'm sick of knockoffs of the critical items flooding in from China such as these threadlockers and also 3M respirators, god knows what else is fake in the markets that jeapordizes safety.

[@reelyology]

I had a closer look at my bottle, to my horror it is made in China, and looks pretty identical to the fakes/cheapos that are sold here online. But mine do hardens to white as you've shown. Also I use both red and blue Loctite which I got from the same shop, they seem to work really well. Send me an email to [e-mail] if you'd like some photos.

[@TheKeenMechanic]

Sorry for the late reply, but even after updating my notification settings I still don't get notification for all my replies. Thanks for sharing my video, such a nice thing to do. I really appreciate it :) I am sure that there are a lot more fake/counterfeit products that we use on daily basis without even realizing. I watched a documentary about how China supplies most of the world with fake Honey and the industry in place to cover up the whole operation. They are finding it more and more difficult to stop the fake stuff coming in from China. It is even scarier when you think how many medicines are made there as well like Aspirin and most over the counter drugs you can buy are made there.

[@TheKeenMechanic]

It is good that you have tested it to see how it performs, as you don't want to take any risks. It is good that it hardens to white and may be your bottle was manufactured better than the one I tested. Thank you for your kind offer to send me some photos, if you have time send me a few photos on [e-mail] Thank you

[@TihomirTodorov133]

glad I can find this on youtube

[@TheKeenMechanic]

Thanks for your comment buddy, much appreciated!

[@umangu]

Very glad I saw this. I only use Loctite for peace of mind. No point using the fake stuff and worrying that it will come apart. A bottle of 15ml of the original stuff lasts me 6 months. I can pay the extra $$ 😂

[@TheKeenMechanic]

Well said

[@alexanders-life]

You have to question why a professional mechanic would even consider using a "fake" product for his work? The Locttlf for sale on ebay is mainly sold as hobby grade, and that's what it is!! I buy Locttlf and am very very happy with it for RC Cars, bikes, toys etc etc....

[@TheKeenMechanic]

Thanks for sharing your opinion. Everone's opinion matter to me and I welcome any feedback for both products but have made up my mind as to what I am going to use🤜🤛

[@quasimongo410]

One thing to keep in mind: if you tighten something to lets say 5 nm and it needs more force to loosen it again, I do not think it makes something better or worse. It makes it different. Completely fine for me. I have locttlf on all my rifle and pistol optics and it works flawlessly

[@TheKeenMechanic]

Thanks for sharing your experience with the product🤝🏻

[@iman80skid91]

Good test thank you for sharing

[@TheKeenMechanic]

Thanks for your comment. I am glad you enjoyed it.

[@iman80skid91]

@@TheKeenMechanic can't believe how Chinese copy loctite there is on eBay

[@etow8034]

You wish a 50ml bottle of of Loctite 243 is $17usd, more like close to $35+usd even back in 2019. I have both the genuine Loctite 242/243 and Locttlf 242/243 and I prefer the Loctff as it is easier to apply and is more accepting to oil contamination. I also attended Loctite's seminars back when I was a engineering student so I know most of Loctite adhesive product line and charcteristics.

[@TheKeenMechanic]

Thanks for sharing your opinion

[@BlackJacketWasp]

Thanks for sharing. I came to this site because I ordered some cheap chinese Loctite (exact spelling, even with Henkel on it). It was watery and sticky like you've observed. I'm not using that shite.

[@TheKeenMechanic]

I am not using that shite too lol

[@donyates749]

If you attempt loosing with lower torque you still applied pressure, would need a separate bolt per pound test, thanks for sharing

[@TheKeenMechanic]

🤝🏻

[@dava4444]

Thanks for the video. +1.. just need something simple for guitars that will stop rattling.. think I'll go with the TTLF. Maybe let it dry out a bit longer before joining.

[@TheKeenMechanic]

Yes, not bad for something not critical like internal engine components🤝

[@DotkesBoi]

Thank you very much for the video! I got the fake one for cheap knowing it might be less effective ,but it seems like getting the real product is the better choice in this instance Will the fake one eventually bind or does it stay as a gel for longer?

[@TheKeenMechanic]

Some people report that the fake one worked but they used it fot less risky jobs.

[@donyates749]

I got fake and find it to be harder like the blue is closer to red. Tells me poor consistency as well but everything I have used it on has no vibrated loose. With that said I would not use it on anything internal or that I can’t get to. For simple things I will, no need to throw away more money

[@TheKeenMechanic]

Thanks

[@Wonguan]

I'd like to see the comparison between fake 222 vs authentic 243 since the former is still much cheaper.

[@TheKeenMechanic]

Thanks for your comment. If I get a hold of some fake 222 I will compare it against 243

[@rcvarna624]

Thanks !

[@TheKeenMechanic]

🤝

[@The_fappening]

I must say, i have received the transparant version. That stuff is a lot stronger than the original loctide, a lot!

[@TheKeenMechanic]

Hi and thanks for your comment. What code is the clear stuff? Thanks in advance

[@The_fappening]

The Keen Mechanic it says 340, can be dound on Ali as generic thread lock

[@TheKeenMechanic]

Thank you for your reply. Good to know that there is a clear version and that is stronger than the blue one. Much appreciated

[@zanderesp4295]

I think I bought a counterfeit by accident, did your fake one come 1/2 way filled? Does the genuine also come 1/2 way filled or come filled to the brim?

[@TheKeenMechanic]

They all come half way full as they need air to stay liquid. If no air then the liquid will solidify. Thanks for watching

[@jorllima]

Was the chinese loctite still wet even in the second test after one month applied? I bought the chinese one because was using the nural 50 on my locks where the 243 was prescribed, and thought that could be better the chinese fake loctite than the patex nural 50 since there is no genuine Loctite 243 available where i live. I guess I was wrong, I will keep using Nural 50. Thanks for the video! I really appreciate your conclusions.

[@TheKeenMechanic]

Yes, the fake loctite was still not cured even after a month. I definitely won't use it especially on engine internal parts🤝. Thanks for watching and for your comment

[@jorllima]

@@TheKeenMechanic thank you again!

[@sidneysnottley6414]

Cheers.

[@TheKeenMechanic]

My pleasure. Thank you

[@pequodexpress]

I wonder if a heat gun applied to the Chinese locker for about 10 seconds would improve results.

[@TheKeenMechanic]

The loctite threadlock harden when sealed and no air, not sure if applying heat is going to make any difference. Perhaps might not be even recommended

[@jaakkooksa5374]

Perhaps the Chinese product just takes longer to cure? It would be very interesting to see this test repeated with let's say 7 days curing time.

[@TheKeenMechanic]

I did another test and left them for 30 days with same results. Thanks for your message

[@jaakkooksa5374]

@@TheKeenMechanic I guess, if you want to save in costs, thread lock is probably not the right place to do it :-) I have a bottle of the standard blue Loctite which I have been using in telescopic sight mounts in high power IGT air rifles, with good results. Certain screws tend to become loose due to the very sharp forward "recoil" caused by the piston coming to a stop at the end of the air cylinder, which is hard on the telescopic sights.

[@TheKeenMechanic]

@@jaakkooksa5374 Correct. Not worth taking the risk. Thanks for taking the time to explain your case.🤝

[@GeraldTheMaker]

well, it's 3 dollars vs 15 dollars....what you want from it. the result is close enough for me to adjust the 5 times price difference. plus it's used for medium strength anyway.

[@TheKeenMechanic]

I get your point but this chinese product didnt work for me. I would rather pay 15usd than have to replace the engine. Thanks for sharing your opinion

[@TheToonJoel]

Sorry its not clear did you allow 24hrs drying time?

[@TheKeenMechanic]

Hi yes. I allowed 24hrs and also did another test which I didn't record where I left it to set for over a month at room temperature and got the exact same results. Very disapointing but glad I did the test before using on my oil pump bolts and nuts. It would have come loose eventually and destroyed the engine

[@paperandmedals8316]

So recently I opened some 242 loctite and some spilled out. Couple days later it was still wet. Do you know if it only cures when under torqued tension? I purchased it from a National auto supply store.

[@TheKeenMechanic]

Hi I learnt something new myself after posting this video. A guy from Loctite shated his 30+ year knowledge and explained that the loctite hardens when there is no oxigen so when you tighten parts then air is removed and it hardens. He also explained that the bottle is only half full and this is not a marketing trick but there needs to be more air in the bottle so the threadlocker doesn't harden. By the way, can I ask you for a small favour? I put a poll on the community tab of my channel and I would very much appreciate if you vote for your favourite spare part. I have something going in the background but can't announce just yet🤝

[@paperandmedals8316]

Spare part brand. Ok. I’ll go to the channel. I’m out of Facebook jail on the 9th and look forward to going to all the E39 and E38 groups I’m in and promoting your channel. There’s guys in the US supporting their car habit just with their KZbin channel. Hope to see you get there. Maybe set up up a Facebook page for your channel.

[@TheKeenMechanic]

I am seeing some your messages now as KZbin has hidden them and held them for review, not sure why. Thanks for all your help buddy. I have been thinking recently about opening accounts on FB and Instagram and may be more platforms to promote the channel a bit more. Thank you for all your great suggestions

[@etow8034]

They are anaerobic adhesives that only dries when there is no air present like in between the threads of a bolt. The bottle uses porous LDPE plastic that some air can penetrate on top of the bottle being filled only half ways so that there is ample air inside.

[@JohnLee-ln6no]

Handy man

[@TheKeenMechanic]

Thanks

[@bretzeletouffeur7401]

Hello, tested different china loctite clones and be warned the soft ZD 222 and some others can be almost unbreakable after they totally cure. Loctite original rocks, but price sux.

[@TheKeenMechanic]

Thanks for your comment and for sharing your experience, much appreciated.

[@pequodexpress]

Maybe a Chinese red threadlocker (271?) would be a better compromise.

[@TheKeenMechanic]

Hi and thanks for your comment. After this test I have made my mind up regarding non-genuine products

[@pequodexpress]

@@TheKeenMechanic I agree with you for heavy motorized vehicles where heat, high velocity, and heavy torque are issues. But for hobby applications, skateboards, bicycles, etc. I think the Chinese product works well enough. I will soon test the Chinese Red locker (271), though without a torque wrench, as I don't have one.

[@TheKeenMechanic]

@@pequodexpress In my case I was planning to use it on engine internal parts so it wasnt an option. But yes, for some less risky jobs may be yes if you have already purchased it.

[@danman2070]

I wonder if the chinese product dries after some time. The loctite demonstrations I see on the web take 24 hours to dry.

[@TheKeenMechanic]

After a month still hadn't dried.

[@danman2070]

@@TheKeenMechanic Thanks for that. I had this exact question when I saw the cheap version. Well done!

[@TheKeenMechanic]

@@danman2070 No problem. Glad you like it and find it helpful

[@Daniel-S1]

My 'Knock-off' Loctite advertised as 'Loctite' on ebay arrived today. I've filed for a refund because the listing is not correct even before watching this.

[@TheKeenMechanic]

You have to be careful with these fake items. Thanks for your comment

[@bigfarmerUK]

@Daniel S - I fell for the same ebay scam... the item description stated LOCTITE, but the pics showed LOCTTFL. Based on this test not worth the £4.92 paid so I have raised a refund request with seller and item going back.

[@TheKeenMechanic]

@@bigfarmerUK Hi there. Not worth the risk. Thanks for sharing and taking your time to leave a message

[@i-_-am-_-g1467]

Made the same mistake it was also titled as Loctite so there is grounds for a refund. Knock off stuff is so crap.

[@RickyG512]

I'm sure the genuine 50ml 243 is £50 GBP and not £15

[@TheKeenMechanic]

It all depends where you get it from. May be now it is. You can still get some deals on ebay if you are not in a mad panic.

[@bertoldriesenteil1430]

Interesting accent. Half rumanian and half northern irish ?

[@TheKeenMechanic]

Not Romanian but yes, half Northern Irish🤝

[@bertoldriesenteil1430]

@@TheKeenMechanic My first guess was Israel. But then I thought people from Israel don't go to Northern Ireland, so I excluded that as a possibility.

[@MrAlternation]

the china one still isnt that bad

[@TheKeenMechanic]

Glad you like it. I had bad experience with it. Not worth the risk in my case as I was planning to use it on internal engine parts

[@eyalmalc]

The product by definition is non-adhesive ... it should prevent involuntary opening for example vibrations (the manufacturer emphasizes that after use the screw can be opened with almost the same force as it closes) and in addition it should prevent corrosion at the point of contact between the screw and the nut. Your test is beautiful but does not match the nature of the product.

[@TheKeenMechanic]

Thank for watching and for your feedback🤝

[@etow8034]

Yes and also prevent liquid from seeping out of the bolt like in many engine applications where there is engine coolant in contact with the bolt.

[@pirminkogleck4056]

u applied it the wrong way !

[@TheKeenMechanic]

Hi Please share the correct application method. I was contacted by the Loctite rep. with over 25years of experience who only had positive feedback for me.🤝

[@pirminkogleck4056]

@@TheKeenMechanic hy, loctte has lots of webinars or web videos where they show how it is appplied. i saw thats someone from HENKEL group reached out to you, but we had a loctite schooling in our facility and i thought u use it A: quite complicated and with a lot of wasted material and B: usualy u apply the drop on the end of the thread ( like you did but it is enough wehn u use the wideness of the screw ( lets say it is a M8 bolt , then u apply it on the end of the thread about 8mm wide or i d k how to explain, from tip downwards u use the wideness of the bolt as a round about . thats enough so that the products ill get everywhere where it should. in every marketing video u can see how it is used. the way u did is probably fine but inst even good looking, you had quitre a mess afterwards . thats just a critial feedback, dont feel offended !

[@TheKeenMechanic]

@@pirminkogleck4056 Thank you🤝

[@pirminkogleck4056]

@@TheKeenMechanic YOURE WELCOME! I DONT WANT TO DISCREDIT YOUR VIDEO AND THE EFFORT YOU SPENT INTO MAKING IT . I JUST THOUGHT FOR THE FUTURE YOU MIGHT WANT TO KNOW THAT

[@etow8034]

@@TheKeenMechanic Needs to be applied on both male thread and mating thread.