Shit man, I didn't even notice that the first go round. I had to go back and figure out what you were talking about. That either says something very negative or positive as to the state of my existence!
gosh....i need to spell check more often before posting......i meant to say i love the stuff. if i CANT weld it with a welder.....i use jb weld instead.
FYI ... I save those little clear plastic yogurt cups to use as disposable mixing bowls for JBWeld or other epoxies. I know other folks use different things to mix on, but it works for me ... just sayin'. Barry
I have used fiberglass mold release on threads, and applied the jb around the threads. When hardened, just back the bolt out.
I have a couple whoppsys in a couple intake ports, I zigged when I should have zagged and I thought of filling with J-B Weld.. Mixed up a batch for a test and after a week its still soft; bendable. To me if you are supposed to be able to machine it it should be hard that it would snap. Thoughts?
You must have mixed it incorrectly, did you do a 50-50 mix of each tube? Was the product too old? I used some today and it set up OK, it should be hard as a rock by tomorrow morning. The stuff really works, I used it today to attach some emblems to a metal panel. Jim
Yes 50-50.. I mixed up two more batches making sure that if I missed the 50-50 it would be to the hardener side. It probably would be alright as a adhesive but not a machinable/sandable hardness. I couldn't find a date on the package..
I bought their Qwick Weld and had problems with it but the normal stuff has always been reliable, hard enough to use a file on.
It doesn't have the reputation of not hardening when it gets old but I guess it could happen. I had some old, leftover JB Weld that became extra viscous and didn't want to squeeze out of the tubes. I tossed it and got a fresh set. When I use JB Weld, or any epoxy really, I keep an eye on what's left on my mixing palette to see how the hardening process is coming along. If I assess that it's going slow, I introduce a little bit of heat, such as laying the piece out in the Texas sun. It seems to help.
My family has been in trucking for almost 50 years. Around 1990 my dad had a truck come into his terminalwith a rod outta the side of the block and the piece was still hanging on. They rebuilts it and JB welded the part back into the side of the block. That engine did HUNDREDS of thousands more miles after that! @Nads did similar in his Packford darn near 20 years ago
The original J-B Weld has saved many a skin over the years, along with a similar product called Devcon. Seen it used on occasion in a locomotive shop with success. It don't get much more 'severe duty' than that! It's save my ass in an "Aww Shit!" situation a few times. Every shop/garage should keep it on hand.
I think the problem was in the first part of the tubes, lack of proper ingredients. Should have run out a 1/2' to clear or stick a piece of welding rod in the tubes and stir up some. Batch 2 and 3 seem to be ok..Thanks.
JB Weld is good good stuff when used correctly . Ive used it many many times for off topic stuff as bedding the actions in my rifles to to stocks . Kinda like blueprinting your engine , for shooting .
I’ve dimpled the bottoms of intake manifolds I’ve made out of steel. You need to be right with it as it’s ready to set. Also changed the designs of intakes, never had it fail.
The Jalopy Journal
