JB Weld for tiny area?

[ItsFlybye]

Has anyone tried using JB Weld for holding a metal object with a surface area of about 3/8” x 3/8” to mate to another bare metal surface to have it hold about 1-2 pounds?

That tiny area of 3/8” x 3/8” is what I’m worried about on if JB Weld can hold in such a small area.

 

[Ajay]

That should hold 700lbs according to their website, less since this isn't a lab experiment. That's for a perpendicular load.
So - no problem.

 

[BoomerD]

Some of the super glue (gel) products are pretty damned good as well. Not sure about gorilla glue's offering. If it's as good as some of their other product...it SHOULD be great.
There's also a "super glue tape" on the market that's supposed to be hella strong. 1-2 lbs isn't all that much. Hell, even the 3M Command hooks are rated for more than that. (in the right configuration, of course.)

 

[Ajay]

Some of the super glue (gel) products are pretty damned good as well. Not sure about gorilla glue's offering. If it's as good as some of their other product...it SHOULD be great.
There's also a "super glue tape" on the market that's supposed to be hella strong. 1-2 lbs isn't all that much. Hell, even the 3M Command hooks are rated for more than that. (in the right configuration, of course.)

Good point.

 

[ItsFlybye]

Thanks all. Yeah I thought about dividing up JB’s PSI rating, but I was curious about people’s real world experience with using it in such a minute amount as a drop or 2 of the stuff.

I’ve considered the 3M super tape, too! But it is the fact that I would have to cut it into a tiny little square of about 3/8” x 3/8” that makes me wonder if it would hold.

What I am considering is attaching 4 small welding nuts (the nuts with that larger flat side) to a vertical metal surface. These 4 nuts will be holding a glass pane that weighs a few pounds. So I’d like to play it safe in ensuring each nut can at least hold 1-2 pounds. I’ve thought of different ways of doing this, but I don’t have easy access to the other side of the vertical surface, and buying a small welder for this would be overkill. Yeah I’ve used different epoxies and such in the past with success, but it’s the fact I’d be using 1 or 2 drops of it that makes me wonder how well it could hold.

 

[herm0016]

can you drill a hole?

sounds like a job for a rivet nut if there is room behind it.

 

[ItsFlybye]

can you drill a hole?

sounds like a job for a rivet nut if there is room behind it.

I’ve thought about those. I can drill a hole. Problem is I’d need it to be reversed. The part that goes in the hole is the part that I need sticking out to hold the glass since I’ll also be using the stem to hold a rubber grommet. And I can’t install it from the inside. Hmm....that just made me wonder if I have enough space to slide the river in from the inside and tighten it the reverse way.

 

[herm0016]

you could use a stand off in the hole as well. just another idea. is there a hole in the glass or are you using a tab to actually hold the glass?

 

[TWGF1572]

I tried something similar with JBWeld. I tried to glue a metal tab on something that had broken off. It was a wire arm on an outdoor snowman, if that helps visualize things. The tab was on the end of the arm, and stuck into a hole on the body. That arm was maybe 5 pounds, but it had some leverage due to the length which you may not have as much of. I could never get it to hold for more than 2-3 days. Little bit different use case, but I ended up abandoning it and going with a mechanical solution.

JBWeld is great stuff, but didn't meet the advertised strength in my case.

What about a pop rivet? You don't need backside access and you could rivet a small L shaped bracket on.

 

[ItsFlybye]

you could use a stand off in the hole as well. just another idea. is there a hole in the glass or are you using a tab to actually hold the glass?

It’s tempered glass with premade holes in it.

Ok this also sounds like an idea:
Drill hole. Insert rivet nut. Insert stand off with a little loctite. Grommet over stand off. Glass goes over grommet. Thumbscrew with rubber washer holding glass down.

Thx!

 

[ItsFlybye]

I tried something similar with JBWeld. I tried to glue a metal tab on something that had broken off. It was a wire arm on an outdoor snowman, if that helps visualize things. The tab was on the end of the arm, and stuck into a hole on the body. That arm was maybe 5 pounds, but it had some leverage due to the length which you may not have as much of. I could never get it to hold for more than 2-3 days. Little bit different use case, but I ended up abandoning it and going with a mechanical solution.

JBWeld is great stuff, but didn't meet the advertised strength in my case.

What about a pop rivet? You don't need backside access and you could rivet a small L shaped bracket on.

Yep and that is what I am afraid of. JB is great when used in a substantial amount, but its strength within an amount of only a drop or 2 worries me.

Yeah now I’m seriously considering the mechanical route with a rivet.

 

[ItsFlybye]

I thought I saw a reply, but someone must have deleted it. While I’m here I figured I’d do an update if you are curious.

So my project consists of having a double sided solid white glass EVGA DG-75 case. The standard version of this case has glass only on 1 side and front. It was cheaper buying a 2nd case for the other glass side than having a custom piece of tempered glass cut.

Versions of the case exist with the screws in place, but that version was almost impossible to find.

 

[herm0016]

nice. would like to see it with the glass on it.

 

[ItsFlybye]

nice. would like to see it with the glass on it.

Here ya go. Its a perfect fit since the template for the holes are on the chassis. The hardest part of this process was finding the right rubber step bushings. I ended up needing to shave the ones I found. I still have the plastic on the glass since I still haven’t finished this project. I already have the external water cooling system plumbed up, and I’m just waiting for a few things for the inside. It’s not even a new build. I’m putting my old system in it since I’m waiting for Alder Lake to come out.