The Honest TRUTH - How Much Stronger is Loctite Red than Loctite Blue?
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- Опубликовано: 21 ноя 2021
- Find out how much stronger Loctite red threadlocker is than Loctite blue threadlocker on fastened nuts. I tested and compared the strength of Loctite's permanent 271 red threadlocker and removable 242 blue threadlocker. Learn what I found out.
@HacksbyDad
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Thank you
Thanks for not dragging this out for a half hour.... I like getting right to the point.
LOL
You're welcome!
Agree. Everything we needed or wanted to know in 3 minutes.
You guys weren’t interested in the history of threads, locking compounds, and putting things on other things?
@@lebojaylol. Depends on the day or mood I'm in.
@@HacksbyDad what if you read and followed the directions, and used the primer that Loctite recommends for Red Loctite?
The point of Loctite is to keep the nut from backing off, not to keep it from being able to be undone. If you don't want the nut to ever move, weld it.
That's not what locktight claims. On their website they say, Loctite Threadlocker Red 271 is a permanent solution for locking and sealing threaded fasteners and is only removable once cured by heating up parts to 500°F (260°C).
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@@Coolcarting Facts, we use 277 at work and if the holes are cleaned and prep'd properly the studs we set are basically impossible to remove without heat
@@Coolcarting Only the Red uses the word "permanent", and some of the products must be Heat Cured.
"Our range of threadlocker strengths include:
LOCTITE® 222 - A low-strength purple threadlocker. Works on all metals and is especially good for applications that may require disassembly.
LOCTITE® 243 - A medium-strength blue threadlocker that offers a good general-purpose solution to seal and secure assemblies.
LOCTITE® 263 - A high-strength red threadlocker designed for permanent locking and sealing of threaded fasteners.
LOCTITE® 248 - The same performance as LOCTITE® 243 but in stick form, this is a blue, medium-strength threadlocking adhesive that works on all metals.
LOCTITE® 268 - A high-strength threadlocker stick suitable for applications requiring a stronger bond, though needs heating to 480°F (250°C) for disassembly"
I reached out to the company and asked them their take on this subject, and I will post it to your Reply and on the main thread when they respond.
I use Locktite 638... and same thing.. you have to BURN it out!!!
I would like to see a similar test under vibration conditions. Hang a known weight from each sample & subject the bar to the same vibration then compare time to break free for each. Loctite is primarily designed to protect against vibration & temperature related expansion & contraction effects, not so much for static rotational loading.
Exactly
This is only supposed to be a simple demonstration. I liked the video and what was presented.
Good idea. The fact that both loctite nuts require a high maintained torque for removal implies they will do far better under vibration than the non-loctite nuts. It's worth testing.
When they had training wheels, my kids’ bikes’ wheels used to fall off all the time-usually at least twice on a ride to and from the nearby park.
After realizing that my work used loftier to prevent just this on our products, I used regular Elmer’s glue on the nuts & bolts. The training wheels never fell off again!
but if you have to eventually remove screw from weak materials like plastic blue loctice is the only way to go. Red is just too strong and plastic crumble :)
Thank you for the comparison in a short video. It was bullet point, accurate and didn't make me fall asleep. Props!
LOL… thanks! I really appreciate the feedback.
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Wow..! best demo I've seen. Short and concise. EXCELLENT!
subscribed simply because he is to the point and gets the info quickly, thanks
I always felt like the red was used for breaking strength and the blue helps with backout strength so a screw wouldn't walk out from vibration. That's how I use the red and blue in the rc hobby. Red if I don't want it to move at all and blue if I just need to make sure the screw doesn't fall out if it does break loose.
Yeah... that's common. For small screws/bolts red is pretty much permanent where the heads will strip or break when trying to remove.
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The story is in the specifications. Everyone is aware of the breaking strength, but loctite spec sheets tell you that the size of the broken blue particles are quite large, while red turns to powder. Blue provides resistance the whole way off
@@gregeoryldepends on where it was applied and how long it sat on the bolt. Eventually they all turn to powder.
I concur. My usage exactly.
Take the green one
Best video short and sweet! Thank you kind sir! 🙏
I was not looking for anything like this video. It just showed up on my front page. However, I’m liking and commenting because you didn’t drag this out and it was informative. Good video and straight to the point.
Thanks! Appreciate it!
Straight to the point, no nonsense yapping, thanks for sharing.
Perfect. Easy and understanding. That's all I wanted to know. Thanks
Short and to the point, excellent video!!
Thank you, you answered a question I have had for several years now.
I love how you covered all the variables. Nice one Dad =)
Thanks! I appreciate the feedback.
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Great video! Exactly the info I was search for!
Thanks! I appreciate the feedback.
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Excellent work! Thank you for the info!
You’re welcome!
I’m planning to test Permatex thread lockers soon. Stay tuned…
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What a much more pleasant test than those conducted by Project Farm. No shouting. No unnecessary repeating. No resulting headache. Good job.
Thanks! 😎
Thank you. This is exactly what I was looking for!
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Plain and simple explanation, yet very informative. Thanks.
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Very thoughtfully done. Thank you!
You’re welcome! Thank you for the feedback.
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Nice and to the point. Thanks for the video
Was a great reinstatement for the hand-loosening afterwards. Blue was easy to remove but enough to stop rattling off id suppose. Thanks for the video
You’re welcome.
Thanks for the feedback.
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Loved it. Thanks. Never really knew exactly how much different the two were. //ji
Cool vid!Short and to the point gets my subscription!
Thanks!
Thanks for this great Video 😊
There is a slight flaw in your test -- if you are pulling vertical down on your scale, the actual lever arm length depends on the cosine of the angle. It would only be 1 ft when the wrench is horizontal. It gets shorter when the wrench is at an angle. If you were using the scale on the torque wrench (which is probably not super accurate but should be repeatable) angle won't matter.
Your right, but the measurable difference is probably only around 1 ftlb, so to show a load difference between three sets of nuts while loosening them the same way, itll still show a difference. The numbers might be a little bit off but the fact of red vs blue vs no loctite having different stengths is shown.
@@skie6282 At 30 degrees, about 1.5 ft-lb error when reading "11" and about 2 ft-lb error when reading "15", but I noticed the angles were not consistent through the test so it hampers any attempt at repeatability or statistics.
@@skie6282 Don’t forget about the coefficient of break away torque do to friction which was instructed to be 20%!
A better test would utilize a digital torque wrench
Very good and detailed test. Thanks.
You're welcome and thanks for the feedback.
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Good info. Succinct. Well done.
Great stuff!
Excellent presentation! Good job! 👍
Thanks… again! 😎
Thanks, that was very useful.
Best well compiled video, straight to the point without the extra bs
Thanks! Appreciate it!
Nice job. Thank you.
really interesting video , no blabla, just fact, very good
Thanks! 😎
concise and to the point 👍
Finally some one who doesn't drag on and on. Thanks!
While interesting-You MISS the point of Loctite-it is to prevent vibration movement-like a nyloc nut-not to resist tool useage.
Right to the point! Very interesting video! Thanks!
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Excellent job my friend very nice testing
Thanks!
Big Thank You 👏👏
that is nice experiment!
thanks
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well done --- Thank you
There's nothing like the scientific method.
Excellent video.
solved an old question for me. Thanks! This also shows the resistance of Loctite to backing off once loosened.
You’re welcome! 👍😎
Good info
On tiny fasteners, M3/M4 on my RC cars back in the day, blue was more than enough! In that case, it was more for stopping stuff from spinning loose due to vibration.
That you for providing this video demonstration.
You’re welcome.
I have an idea on how to possibly do a vibration test. Stay tuned…
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I saw a video the other day about red loctite. Supposedly the instructions state you are supposed to use an activation spray with it for fasteners without active metal, which is a good number of fastners like zinc coated.
Thanks for not wasting our time with a 20 minute video.
Well done. Thanks.
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Thanks. good test.
Thanks for the feedback... much appreciated!
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Theory, Simple is the best.
This video makes me be your subscriber.
Thanks!
Thanks!
Nice video , you know how to do it , make more.
Great video, as determined by the usefulness of the comments!!!
Thanks!
They are made for two different applications blue for retaining a bolt or nut from vibration and made to be removed with regular tooling the red is for locking application and heat is needed to brake the bond to remove if you clean the matting surfaces they work as intended .
i was come for write these.
You was explained better than i think
Im subscribing because you got right to the point. No 11 min video with a 2 min intro.
LOL… thanks!
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I've always used the blue loctite on bolts. The reason is simply because I view it as being the "nylock nut" of the bolt world. 😊
I learned from this too always use Red,
I just use nylocs on everything 😇
Precisely.
Really good
Everyone likes to think the red loctite is "permanent-forever-welded-torches to get it off" but in reality it only requires a bit more torque to break it free. Rust will always cause more problems and realistically loctite prevents rust so it probably makes most bolts easier to remove over time in the North.
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Although in my case, red lock tite on very small screw will strip if you force it, I have to use brake cleaner to dissolve it.
Excellent point
You may be right in some circumstances but try to undo a shallow flathead screw that has a few drops of 263 red loctite on it... have tried a few times myself out of curiosity without any luck haha. When I eventually need to get it free I will just weld a nut to it but have fun with the “right” tool for the job.
You say that but I've stripped bolts from the top that had red loctite because I didn't use break cleaner lol
Great video
Thanks!
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Excellent scientific method
Thanks! Appreciate the feedback!
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I like the simplicity of this test as it's a real life application.
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Last night i was taking apart my 2x72 belt grinder and i had used red 271 loctite on all the fasteners (mostly 5/16-18 stainless (18-8) hex bolts and nuts. The first nut didn't want to budge when using a ratchet so i grabbed a 36" breaker bar and i was able to get it loose. Second nut was tough with the breaker and i ended up turning breaking the bolt right off. For the rest of them, i gave them a light torching and that made the rest of them simple.
Based on your results, i wonder if you got some counterfeit loctite.
Did you clean the nuts and studs with an evaporative solvent before applying the loctite?
Parabéns pelo conteúdo
Eu aprendi muito
Continente assim
the high strength one is usually heat resistant, there are also medium strength thread lockers with medium heat resistance or sealing properties
Heat resistance? Hmmmm… I just might do a video about that. Thanks!
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If you don't remove the plating from the thread I believe you will need to use Loctite primer before you apply Loctite for optimal break-away torque values. Try using cleaned uncoated fasteners and repeat the test see if the results change.
If I have to remove the plating to make it work I might as well weld it at that point
Can I use blue loctite on a bottom bracket? In case mine loosens again with only a few drops. I think I used a BB cup with a few stripped threads which came loose over time so I'd like to buy a new BB and put a few drops in case it loosens.
I looked up how lock tight is made and how it works. Very interesting check it out.
The best “please like” I’ve seen 😀
Is is possible to remove LOCTITE 242 residue from painted surface?
I used Loctite 242 for the screws to attach black painted bar ends weights to the handlebars of my motorcycle. Unfortunately, I had some Loctite residue on my hands during assembly, which left some ugly fingerprints on the shiny black paint of the new bar end weights.
Is it possible to remove the loctite residue from the bar end weights somehow without damaging the paint? Maybe with chemicals, heat or buffing?
Good test. I've ridden Harleys for the past 35 years, and I put blue Loctite on EVERYTHING to keep everything together with all the vibration my bikes put out. It does the job. I use red on things that I don't have any intention of removing like sissybar sideplates, and accessory mounts.
Yeah Harley should come with a gallon
@@joeKisonue 😂
Great job. Thank you.
Thanks!
what is that measuring device? and how is it working??
There’s loads of different loctite , that’s why they represented by a number. It has to do with application also . I’ve had specs to follow that you use 3 dots( when you squeeze the bottle a droplet falls ) up a thread to a line up ( you squeeze a line and it remains a line , not bladdered everywhere) the thread. One application we use a line on thread on a highly flex frame and a bolt under high stress . We torqued up to 30lb and breaking it is 90Lb-120lb . If we fit to less it’s comes free or seizes in place due to moisture , apply to much then the only way to crack it is using loads of heat ( not what you want on a highly flexible frame ) . The right application you can usually find in manufacturers assembly/service guides
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We use red loctite but always wondered how affective it really is. Interesting.
I just broke loose some nuts on 5/16" stainless bolts and i had applied loctite 271 about 9 months ago on them and it was probably 3-4x the force you used to break yours loose. I had to really lean on my long ratchet.
Yeah… might have been the 24-hour cure time. When I get a chance, I’ll redo the test with a much longer cure time. Maybe at least a month. Thanks for sharing.
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Very good video. It surprises me to see the blue loctite is not that strong compared to a plain bolt. However, it must do something. Grettings from Madrid, Spain!
It just stops nuts or bolts from backing out.
i wonder if we reduce the amount of red applied, could it achieve the same result as blue?
Nice video. I’m commenting to help out lol
Thanks! Appreciate it!
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thanks.
If those are stainless steel nuts and bolts won’t it take longer to cure? Loctite says stainless steel and zinc plated steel are considered inactive and will take longer time to cure.
Nice.
I am going to the shop now, I believe this gentleman has my torque wrench! My Son's laugh at my old beam style torque wrench, probably the only reason I have kept it this long.
Your sons may laugh, but a click-type is only as good as it's last calibration. In beam-style, the accuracy is built into the metallurgy of the wrench itself. Yep, I also own the TR featured in the video!
@@bradyt7857 There are a couple of things they will most likely keep when I am done with them, that torque wrench is one of them.
So, red can be loosened withou a blow torch and stuff?
When is a good time to use these?
No spring washers were harmed in this video
When I didn't have loctite I used any nail polish and it does the same.
In most uses it's just to prevent backing off of nuts or bolts, etc. The blue is for the ability to hold but still be able to back it off without damage. The red is to hold in more adverse conditions and be much harder to loosen and back off. I have had situations were red has been used and did not back off this easily. And yes, at times it did require me to heat it up. To say that this is not required is foolishness. I never use red unless I plan on basically never needing the nut or bolt to ever be loosened. Otherwise it's always blue. And all that is with or without lockwashers and such. Just another safety step. Specially on fasteners that could cause serious damage or injury.
The type of metal, thread pitch, and size make a huge difference.
Such is the reason Red Loctite Threadlocker is listed as "Permanent" by the manufacturer and less apt to vibrations, usable for gasoline and petroleum presence areas. Cure time is 5-15 minutes dependent on the material used; Steel, Brass, or Stainless Steel. The manufacture advertises a 3/8"-16 grade 5 bolt break-away at 6.25 to 18.75 ft. lbs. (in. lb. conversion) The use of "Primer" accelerates setting times; see manufacturer's specifications. In many cases, Loctite specifies the use of the red color, (dependent on product number for purpose of use) for larger gap areas. Please be aware that simply the color does not mean the application. In the automotive machine shop business, I use many Loctite products, always with the trust of proper function when using the proper "primer" before application. Thanks for your video posting.
What, no calibrated torque wrench? Aren’t there more than 2 different kinds of Loctite? Also, what if you use a primer?
Blue for nuts/bolts to keep from vibrating/ working way loose.
Red to REALLY lock them down in more permanent applications.
Bare for your alternator adjustment!
Nice & to the point.
I knew it was to keep the bolts tight in a vibrating environment so they wouldn't loosen.
Excellent tests, but it's 24 hours really sufficient for the two Loctites to set completely? I have found Loctite Blue still damp after a day, when I used it on a 1/4"-20 bolt and nut for a project.
The directions say 24 hours for full cure. I’m comparing longer cure times now with the last test period being 1-year. Stay tuned…
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Seems like blue is like a thread protector and also helps reduce the chance of a nut backing off. Red is to assist in holding the nut to the bolt.
Is 24 hours enough for gaining final stength? How about a test...?
I suspect the Loctite bond continues to get stronger for a lot longer time than 24 hours
also I think that it is supposed to seal the threads against water and salt penetration which would cause corrosion over time although antiseize or even plumbers' Teflon would do the same
does probably reduce "walking" due to vibration