JB Weld Strength Test
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- เผยแพร่เมื่อ 26 มิ.ย. 2020
- Is JB Weld strong enough for you repair or home improvement project? In this JB Weld strength test we demonstrate how to use JB weld as well as incrementally test the strength of JB Weld.
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Be sure and check out our How To on JB Weld. th-cam.com/video/vRNPNju4ZjU/w-d-xo.html
I think I’m more impressed with the strength of the duffel bag strap.
Me to
we all knew jb weld could do that from project farm. those free swag duffels rip from wet sneakers.
Totally, you'll need over 2000 lb to undo that bond.
🤣🤣🤣🤣🤣😭
You funny as hell
JB weld is great stuff. Used it to plug a pin hole in ford explorer AC line, used it to stop an oil leak on a 4 cylinder Camry engine, plugged a cracked radiator, used it daily to fix ikea furniture and much more.
How is it holding up? My intercooler for my car has a pin hole size leak. I was wondering if it can stop the air leak
My electric scooter handle cracked near bottom and bent been looking into this to fix it you think it will hold?
@@euansellers483 yes it will. Make sure 2 pieces make 100% contact. And let it cure for good 24 hours. I don’t exactly how bad the bent is but you have to make sure there is no gap when putting both pieces together. Use straps or vise to hold them together if you have to.
@@euansellers483 still holding good.
I did it on radiator it hold for little bet, I think the temperature and pressure and hot coolant is too much for jbweld
I wonder how many critiques of your technique will chime in. The world we live in.
🤣🤣🤣
That was a good pitch. "JB Weld good stuff" lol
Absolutely. I had not used it too much before. BTW - not a paid endorsement. Your mileage may vary. Thanks so much for watching.
I had pretty mixed results with JB Weld. What I noticed about it is that despite its tensile strength, - it's rather fragile, and definitely doesn't like knocks. I had the glued connection crack along the dried glue part if dropped on the ground or tiles. It handles humidity and moisture well, similarly to other Marine Epoxy brands, but it's also pretty sensitive to temperature changes of 80-100 C. I think that over the years it fared best in gluing carbon fibre, leather, rubber/foam and steel, but not as well with Aluminium, probably due to it quickly developing oxide coating after sanding and Acetone rinse.
Thank you, this was very informative.
@user-xz6cu5vf2u absolutely!
I fixed a A/C leak in the high pressure hose on a customer car with JB Weld. It's solid as new!!
That’s great news. Would you keep us posted if it holds with the temperature variation combined with the pressure. Thanks so much for watching and sharing.
@@FieldGuidetoDIY Yes!! I will keep you posted. It's been 5 days now, i havent received a call yet, so far so good.
You can 2x adhesion strength by abrading surfaces with 100 grit and then acetone wiping the surfaces first. Prep method used on aircraft.
Thanks for the suggestion. I'm gonna have to try that. Thanks so much for watching.
I like to mix this stuff with clean leftover chopsticks from takeout meals. You can stir the epoxy on a piece of folded paper towel, apply it using the stick to dab, then break the chopstick, wrap it in the paper towel, and throw it out.
Great tip. Someone mentioned my cardboard idea was dangerous because it is the cardboard is porous. I like the chopsticks idea though. Thanks so much for watching and sharing!
Its so durable. Right now I have used it for my car’s looking glass plastic repair.
Discover Health Absolutely! In fact although JB Weld has a product specifically for plastic, we found JB Weld Original works great on plastic. th-cam.com/video/A0BtKeN5YnI/w-d-xo.html Thanks for watching!
Great video! I even used JB weld on an alternator bolt hole on my car where the threads stripped. Its been years and it holds like a champ! No need to buy a 300 dollar alternator or 500 dollars for a mechanic to replace.
walletphonekeys Thanks so much. The fact that it held and you know the tension on that spot. Powerful share. Thanks for telling us about it. Also, thanks so much for watching.
thats great, just need jb weld to hold steel metal in place, doesnt have to be load bearing but this brings assurance it will stay in place
Absolutely. Thanks so much for watching.
I snapped a bolt off inside my bikes brake mount. I JB welded it as a temporary fix until I could extract and tap it. That was a year ago.....
WHAT?! Great idea! And it held? Nice. I’m doing a router repair today where it had been tightened too far and cracked off where the bolt goes through. I’m trying to fabricate that piece of metal by building up JB Weld. Thanks so much for watching and for sharing.
i was going to say.. watch your feet incase it falls on you!!! but wow that’s super durable stuff!!
I know right? I was careful but JB Weld did not disappoint. Thanks so much for watching and for you concern!
Dunno I expected you to use it as a liane in the outro carrying the 100 lbs in a bag around your shoulder 😂
That would be funny. You may be seeing that in the future. Thanks for the idea!
Rips the garage door hanger right out of the ceiling !
That's in the outtakes. "Coming up on Field Guide to DIY we're going to show you how to rehang a garage door." LOL!
Awesome video! Would have been interesting to see 100 lbs or whatever weight hang for 24 hours or more, as well as maybe swinging the weight or bending it to see if it snapped or not. I have always loved JB Weld, just never put it to a test like this. Great stuff!
Thanks so much for the idea Sonny. Thanks for watching!
I'll have to get some of this and visit my old employer one night and apply it to the latches on the delivery trucks roll up and side doors so they can't open the doors when they get to their destination. The drivers don't check before leaving the store. They just get in the trucks and drive off. 😁
Just as added security, right Joe? 😉 just don’t get caught. Thanks so much for watching.
When did Adam Savage shave his head?
Oh cmon Andreas. I think i look MUCH more like the smart one, Jamie, than Adam. Thanks for watching! I get that comment so much, I’ve got to use that.
Wow that's impressive 😲
Great video. I saw this stuff in my local hardware store (In UK) but thought it was a gimmick. I may attempt to repair that chair with the broken weld thats been sat in my garage for 6 months !
I would say it is perfect for that!
Definitely try it out. The end of my clutch lever popped off when I accidentally laid my motorcycle down trying to park. Used this stuff and wrapped it tight with duct tape. Came back the next day and it's very solid. Great repair until I get a new clutch lever to replace it but works just as well for now
Excellent. I’m so glad it is holding. Thanks so much for sharing and for watching!
That same lap joint could also be done with 3M VHB tape and achieve the same result. It would also withstand hot and cold cycling because it can flex slightly whereas the epoxy will break due to differences in thermal expansion between the steel and epoxy.
Really? I’ve not tried 3M VHB tape. Will definitely check it out. A buddy of mine recommended JB Weld for a bar stool repair which got me questioning if JB Weld was strong enough. I’ll check out the VHB tape but I’m thinking it might be a little “unsightly” for the kitchen if you know what I mean. Thanks for the tip. Will check it out. And thanks so much for watching!
@@FieldGuidetoDIY It is used to put metal facade on skyscrapers and trim on cars.
Has the benefit of handling shrink and swell that would occur during day and night, whereas rivets or other mechanical fasteners would break due to shear force. Several videos on TH-cam explain it. I have used it on several projects.
I repaired an aluminium pan with a hole the size of a bolt with JB weld. Never had any problem after.
Nicely done Moe. Thanks for sharing and thanks so much for watching!
I'm interested in this. My table had a vertical metal leg and a metal leg going diagonally from the middle of the table to the leg bottom (forming a triangle). I dragged the table on the floor (my bad) and the bottom of the diagonal pulled the screw and a piece of metal out of the vertical leg. I'm trying to use this epoxy to stick the two together, but the table is rather heavy so I'm hoping it sticks well. It's about 100lbs altogether.
You should be golden. If I’m understanding your description correctly the crossbar at an angle is there for stability and doesn’t bear much weight (unless you’re a foot propper like me). JB Weld is rated for 680 lbs. Apply a generous amount and clamp it and let it cure for 24 hours. You’ll be in great shape. Keep me posted. Thanks so much for watching!
Thanks for the video. Its official strength is 5020 PSI so 70 pounds is nothing for it 😀
Thanks for watching. You are so right. Many times manufacturers report numbers but those are ideal conditions. I am still very impressed with how strong this stuff is. Thanks again.
Because I have no clue, that means it can hold over 5000lbs per square inch?
Ty
You are quite welcome. Thanks so much for watching.
I fixed a cut I made by mistake on a Honda GC 160 engine. I saned area. Then degreased area. Put JB weld on both sides then A small piece of aluminum flashing. More jb weld then a small piece of fiberglass cloth. More jb weld...3 years going oil doesn't leak
Nice! Thanks for sharing and for the detailed fix.
Hoping it holds up on a but joint.. My 2010 Toro personal pace cracked in two on the bottom side of the chute for dispensing grass. Right in the middle it looked like someone grinded it in two the line was so straight. The housings for Toro (residential anyway) aren't very thick so they'll be light but damn I've only got 4 seasons on this one. I think it will hold up as the only stress it endures is from flexing a bit while mowing.
Well, the manufacturer says it is rated for up to 680 pounds but that doesn’t say how much of the surface contained the epoxy. Keep us posted. Thanks so much for watching.
It's great stuff I used JB weld on my transmission housing I had a crack and it completely sealed it
That’s great to hear Narwhal. I’m so glad it worked. Please keep me posted as the repair is met with changing temperature and vibration. Thanks so much for sharing and for watching!
@@FieldGuidetoDIY yeah its been about 3 months now on my beater. 2002 Pontiac grand prix. I went to pop out the driver side CV axel with a pry bar and I ended up putting a half inch hole in the housing. I bought some JB weld didn't even prep the surface properly mind you alot of trans fluid coming out so I just used paper towels to dry the area and applied it.
Trans basically runs at whater the engine is at around 180f to 210f in traffic. I'm not soft on the car either mind you, I'll run over holes or take turns a little hard. And the passger engine mount was basically torn to shreds and I just replaced it 3 days ago so there was definitely alot of vibration in the engine bay.
Hasn't leaked one bit and the JB looks like it's not going anywhere soon
Oh ps I commute to work everyday in her about an hour each way so I spend a min of 2 hours in it a day.
@@narwhal9852 i am impressed. I baby my 5-speed Fiesta so I could not imagine the torque JB Weld is under. Very impressed. Travel safe!
Impressive
JB Weld Original Cold Steel or my arms. Hahaha. Just kidding. Thanks so much for watching!
I enjoyed watching this vid lol
I’m glad you enjoyed it. It didn’t have anything to do with the possibility of seeing an injury to my feet, did it? Thanks so much for watching!
i’m impressed by your impression of mythbusters
LOL! Thanks so much. "Who ya gonna call?"
JB weld holds well if you're adding only one directional force to it and without any acceleration of that force. If you're holding anything that has any side movement or vibration than one direction, the kwikweld will fail eventually every time. The original JB weld is a much better product than kwikweld as it hardens like a rock where as in my opinion kwikweld stays too soft in comparison.
Ginsengjin, thanks for chiming in. You raise a great point. That has been my experience as well.
Considering JB Weld and wood has a tensile lap shear strength of 1000-1800 psi, the wood would have to be ripped out between his feet before the bond failed. I think that accomplishment should be rewarded more than $500.
100 pounds with a 2" overlap is a good test for strength. May I ask, what do you suspect would happen if I filled in a stripped out 6mm bolt head with JB Weld and let a 6mm Hex Key harden in there with it? Would it provide enough strength to torque out the 6mm stripped bolt? I suspect the stripped bolt was torqued to 30-40 lb pounds.
I imagine we’re talking about a square quarter inch of JB Weld and JB Weld is rated for 680 pounds per square inch. You should be good up to 170 lbs of torque. Please let me know how it goes.
I hope you had on some steel-toed shoes while you were doing that. The consequences if that bag broke instead of the JB Weld or if the JB Weld broke could have been quite painful and expensive.
Absolutely! I wasn't sure if JB Weld would hold or not. Thanks for your concern and thanks so much for watching!
My office chair broke where the air cylinder meets the bottom plate of the chair... a new neck+plate is like $60... I'm thinking I'm going to JB weld the hell out of it and see if it holds up. I'm 6'3 and like 250 lbs and every office chair I buy breaks when I lean back and put my feet up to watch a movie at my computer. Would be nice to be able to JB weld the hell out of it so I can chill without destroy my chairs... haha.
Absolutely!
Impressive. I'm guessing the next time you'll hang that "test" lower so you don't have to lift the weight to chest height!
BUSTED! My lovely assistant did not want to be "in the shot" so I edited her out in post. I was unable to press the weight being supported on the cable using my thumbs only. Hanging the "test" lower is a GREAT idea!
@@FieldGuidetoDIY but had no clue the JB weld would be that strong.....
Dave Patchin Frankly me either. Their website reported up to 60 lbs but obviously in this test it stronger than that.
The threads connecting my bike's crank arm to the front gears got stripped, and my pedal fell off while I was riding the bike. I decided that I would never have to take that bike apart anyway, so I just JB welded the nut onto the bolt threads. So far it has survived a week and I'm hoping this will be a near permanent fix.
GREAT thinking! As long as you never need to loosen it again, why not. Thanks so much for sharing and for watching.
Still holding?
@@jeff666p yup, I put around 400 miles on the bike and its solid
This is what im doing as we speak, the threads from my pedal turned the threads in my crank arm to dust after smashing it on a rock and continued use, so im jb welding the pedal into the whole. I really hope it handles mtbing. Just a couple weeks and ill get a crank set and peddles anyways, but i ride daily and two weeks off the hills will kill me.
I’m not sure how much surface area the JB Weld will make contact. I also don’t know how much standing on the pedals you’ll be doing. Please keep me posted.
I am interested in a shearing test. Take two pieces of flat 1/4" thick by 1" wide steel and weld them together with minimal possible surface area. Then extend the combined flat out so the weld extends beyond the fulcrum. Then hang the weights on the end.
Ooh, I like that idea. I’m not sure about the practical use of that would be testing. Let me think about it. But in the meantime, let’s just say coming soon. Thanks so much for watching.
its still not strong enough to hold my thirst for chivalry
Chivalry is ded so are my brain cells
Hi, liked the video, however I have a suggestion. Your JB "welded" lap joint was in the last 3rd of the length of steel and closer to the bolted attachment to your garage door frame, rather that being in the first 1/3 and closer to the loading point. I suggest flipping the test piece so that the welded joint follows the later not former description above. This would give you a more realistic test. The closer a joint is to a hard point or corner the stronger it is and the closer it is to the load point the potential weaker. Plus load transference through a spring (or springy) steel will not be linear. The steel you used allows for more elastic deformation, meaning load at one point will not be the same along a linear work piece. Just wondering. Thanks and keep up the good work!
Sean Eppert Thanks so much for the excellent suggestions. I was thinking about doing a future test and also applying heat. I think I will apply your suggestions to that test. Thanks for the suggestions and thanks so much for watching!
@@FieldGuidetoDIY FYI, it takes a minute to read my replies, lol. Take care!!
Notice he started with a bag with nylon straps 😂 and that worked great!!
🤣🤣🤣
I would have started with 200 pounds and gone up until the metal strap failed. I'd bet the breaking point would have been the strap not the joint. But I would not have used my garage door hanger as an attachment point- but maybe an oak tree branch?
Great tip but this was my first use of JB Weld Original Cold Steel. I had no idea how strong it was. I knew the garage door hanger was strong enough to hold 227 pounds (you can guess how I figured that out). I’ve got an idea to test it further for an upcoming video but I have to wait until my wife is out of town. Thanks so much for watching and the input!
Dude, I was worried you weren’t wearing a hermit incase the bar came off and headed towards your head.
Also, do you think the weight could be held long term?
Nice little semi-scientific video though. Thank for sharing :)
Asadi, I did strength test the garage door track so I was not concerned about that pulling out of the ceiling. I raise a good point about the potential whiplash if it did break its bond. I tried to stand back as much as I could. My very first repair on our bar stools is still holding my 230 pounds every day at meals. It is rated for up to 680 pounds per square inch. Thanks so much for watching!
Hello Sir, can JB Weld patch the carbon fiber part holes?
It can provided the hole is not too big and the JB Weld has some “meat” to bond to. Thanks so much for watching and let me know how how it goes.
@@FieldGuidetoDIY wow thank you so much Sir for your opinion 👍👍👍👍👍👍👍👍👍
You got it!
I wonder how strong JB weld is when you added bolts and screws on the joint. It could be great for a weld-less homemade small vehicle projects like electric skateboards
Talk about a strong bond.
Why are we not going to go any higher? It's a strength test you go until there's no more strength
You just wait. I recently invested in a push pull gauge to determine the actual point of failure. Looking more and more like Mythbusters.
Should do a shock test.. dop a weight into the bag or something...
Brian Van Dyke What a great idea. I still have the test strip. Maybe soon. Thanks for the tip and thanks so much for watching.
whao is that real?,if it's real it''s very good stuff amazing
Great demonstration but I've never seen a guy not care about his feet or his garage floor..
LOL! You didn't see the outtakes. I can almost move my big toe now. Thanks for watching.
I agree with what some other people said - let the 100 lbs hang for 24 hours or longer.
Coming soon …. Thanks so much for watching!
In exchsnge, dry the jb weld up to one week
Is it me? Or was some of his speech how Adam Savage talks ? 😀
LOL! I get that a lot. Thanks for watching.
Is it applied to a tank with a pressure of 8 Bar?
I have not tried yet. Let me know how it goes.
I use coffee stir sticks!
Great idea Brian. That way you can easily tell if it is starting to set before you apply it. Thanks so much for watching!
I hope your foot was not in the wrong place while testing...
Nope. I was straddling a big box of pillows. Thanks for your concern and thanks so much for watching.
You don’t mix any type of epoxy,fiberglass,bondo etc on paper unless it is waterproof like the sheets you buy made for bondo.Always mix on metal or aluminum if possible
Thanks for the tip Gary. Why is that?
Nonsense. JB Welds' own promotional images and instructions show mixture on cardboard just like shown here.
I use a toothpick to mix
I’ve tried that James as well as a popsicle stick but I’ve found the room key card lets me also “trowel” it on. Thanks for sharing and also for watching.
Strength test usually implies you find the breaking point.
So what your saying is itll repair my glasses 😂
Wait! How thick are your glasses?! Thanks so much for watching.
@@FieldGuidetoDIY think of professor Farnsworth's glasses, but thicker.
@@esprix4817 LOL! Wow! That's thick. Good thing JB Weld is rated up to 680 lbs. Just kidding.
@@FieldGuidetoDIY i used jb weld plastic. My frame is metal. I wish itd be more "rigid" or something. But I suppose better than nothing
Esprix I also did a video on my experience with small metal repair. See it here - th-cam.com/video/LWt2vkgiPU8/w-d-xo.html
"two equal portions"
Proceeds to hack out portions randomly.
Fun video but I still dont know if it is strong enough
It is rated for 680 pounds. I’m still devising a test ... maybe lifting an engine block. Stay tuned.
@@FieldGuidetoDIY That would be awesome! I saw another video that only had 27lbs, but the epoxy wasn't joining to the metal it was on, so maybe that's why.
It worked for a blown car radiator .patched the hole and I made it home.
Nicely done. Great product to keep in the trunk for just such emergencies. Thanks so much for watching and for sharing.
Next question would be. For how long this is gona hold 50-60 pounds. In term of time.
Under constant pressure or weight? I'm not sure but the repairs featured in these videos are still holding with consistent use. I do not have an application that is under constant pressure. Let me know if you use JB Weld for just such a repair and what your experience is. Thanks so much for watching.
Put some on a broken window roller handle well see how it works tomarrow lmao
It's after midnight, what is wrong with me?
Well, if you have trouble sleeping you’ve come to the right channel. Put on Field Guide to DIY in continuous play and the smooth dulcid voice with have you in REM sleep in 5 minutes or your money back. Thanks so much for sharing part of your evening. Sweet dreams Sarge.
I thought he was going to lose a toe or two
Nope. JB Weld held strong (I had a stack of pillows just below the shot).
Will this work--Wood to Aluminum>
I personally haven't tested it yet (coming soon to a video near you) but the manufacturer says it will. Thanks so much for watching (and the video suggestion).
The only thing that jb weld can't fix is her love for you
He should have tried climbing it
Go higher. All together. 170lbs.
I was afraid i couldn’t lift it that high or it wouldn’t hold. 🤣
CAUTION: my JB weld DID NOT CURE after 24hrs !!!! never had a glue do this to me EVER Going back to 5 min epoxy
I’m sorry to hear that. After nearly four years and plenty of use, ours is holding strong. Thanks for the input. Definitely gonna check out the 5-minute Epoxy.
Just buy a flux core or a stick or mig or tig
Absolutely Nick.
Your toes! Watch out for YOUR TOES!!
Thanks for your concern 😉.
he was too close to the weights, they couldve fall and injure his feet
Thanks so much for your concern. I had a box of cushions to catch the plates it JB Weld could not hold. Fortunately it held strong. Thanks so much for watching.
stand with your feet under the weight lol
You noticed I DIDN’T, right? Thanks for watching.
I have always mixed JB Weld on plastic, as don't like the idea cardboard particles weakening the glue . Still the Original JB Weld seems to be one of the best adhesives , but west system epoxy is also good stuff ! My favourite adhesive is Araldite 2015 industrial epoxy its about £70 a tube,, its a bit toxic but amazingly strong on GRP.. its on another level .
Dude you can hold 100lbs with a zip tie.
🤣🤣🤣
😁😁😁😁👍👍👍👍
Yes! So glad it helped. Let me know if you have any questions or suggestions.
I heard it was 5600 pounds per square inch and you only loaded 100 ! That's why you got thumbs down ! For wasting a lot of peoples time !
@@allatonce3143 oh you just wait for the contraption I am building to test ALL adhesives. Sorry to disappoint on this one.
No.
What are some of the projects you've used JB Weld for? Do you use it around the house, around the garage, around the camper, or around the boat?
I stuck a fitting in the hole of a honda head and jb welded it. It holds coolant and all. Well... ok this is the 2nd one I've done this to and it works like a charm! Love jb weld!
@@terrelldancy7830 So glad to hear it is holding. I have not used it on an engine so I was wondering if JB Weld would hold under heat and pressure (like on a thermostat housing or a radiator). Thanks for watching!
@@FieldGuidetoDIY yup yup! Now I will say that I would only use it on places that are already strong this fitting was on the head and those are made of strong material If .... this was the last resort id try to put it on a radiator crack depending on what the radiator is made of those plastic radiators are asking for trouble but the Metal ones? Sure why not!
The instructions says it holds up to 3,921 psi and up to 550° so a good application and technique and let her roll!
Terrell Dancy Imagine using on a car you intended to drive cross country. That is faith in the product. I’m not sure I’m there yet. Still a relatively new user.