J-B weld

[Road2Ruin]

Hi Chaps,

Has anyone ever used this stuff and could it be considered for minor chasis repairs? I first saw it mentioned in the bible and looking at there webiste it certainly seems up to the job but a few user reviews would be good. I dont have any chasis damage yet but I know its only a matter of time and would look at this for a small hole.

[steve-V8s]

Glue for Chassis repairs! Wouldn’t think the MOT man or the next owner would be very impressed. It is excellent for what it is, an Epoxy based adhesive, but not really quite the same as a bit of steel. I use a fir bit of it for sticking two electronic components together and use it over normal epoxy because it will withstand higher temperatures for longer.

[Road2Ruin]

According to their website, and these are to taken with a large pinch of salt, it is stonger than a normal weld. With regards to the MOT man as long as its covered with waxoil he will never notice and there wont ever be a next owner. My scenario is this; shoudl one notice a small hole would it feasibly be ok to knock it back to solid steel and then apply j-b into it or even to put a piece of patch steel over teh top? Would certainly be looking into for cost and ease purposes.

Pete

[Griffinr]

Road2Ruin said:

According to their website, and these are to taken with a large pinch of salt, it is stonger than a normal weld. With regards to the MOT man as long as its covered with waxoil he will never notice and there wont ever be a next owner. My scenario is this; shoudl one notice a small hole would it feasibly be ok to knock it back to solid steel and then apply j-b into it or even to put a piece of patch steel over teh top? Would certainly be looking into for cost and ease purposes.

Pete

It is probably quite adequate for what you might describe as a "non structural" repair. i.e. early stages of outrigger corrosion where your first hole might have appeared and needs sealing up to prevent ingress of water. You would need to grind back to good metal and profile a piece of steel sheet to bond over the top idealy. I fixed a localised hole in my Pug exhaust this way and it was still ok when I sold it 5 years later.
Out of interest it is quite common in the oil and chemical industries to repair corroded pipework and equipment with composite materials such as epoxy resins, glass fibre and carbon fibre.

Rob

[blitzracing]

Ive used the stuff quite a lot. Its still an epoxy, and sets glass hard (the 24 hour stuff). I would not use it in place of weld however as however good it is, the joint is likely to fail on thin metal, and it runs somewhat before it sets

[DaveV8s]

Don't forget that major motor companies are using adhesives to bond chassis parts together, before anybody says I know it is mostly aluminium, but look at this: -

"The current version of the 5 Series uses an aluminum frame in the front, bonded to the steel rear end of the chassis. Used this way, the chassis provides better weight distribution and also cuts overall weight of the vehicle"

[phillpot]

Think it will mend this ?



Might need a couple of packs . . .

Edited by phillpot on Tuesday 3rd November 08:20

[phillpot]

Took three packs in the end !