Reliable Glue Needed

Sigh.

I am really getting very tired of these incompetent questions from anonymous people. I will again post here the pertinent CR4 FAQ that you've obviously ignored.

• Provide as much information as possible. The most frustrating questions on this site are like this: "I need a sensor to test water flow - which is the best one." What are you testing for, what are you trying to determine? Is it in a stream, a pipe, an aquifer? Are you looking to measure velocity or mass? Are you testing for particulates, mineral concentration or pollution? Is it wastewater, potable water, slurry, etc.? The more you let us know, the better the chance that someone on the site will be able to help you find an answer (thanks Silas Marner).

With the information you've provided, I decided to borrow the Car Talk Roulette Wheel of Automotive Misfortune to provide an answer.

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You need to change your alternator. You almost needed a new transmission.

I'm sorry for lack of information, the two aluminium pieces have 1 inch width and 1/8 inch thick , and will carry about 20 pound load.

I know it is better to rivet them together but because of their location it is impossible .

That is all fine, but what kind of the adhesive you talking about, that is exactly the same as teaching me how to cook and no food to cook ?

Zaghlool

Adhesive, Epoxy, Devcon Jeweler's 2-ton, 30-minute, 2-part. Sold ...

Or equivalent.

Lynlynch earned a GA for a sound recommendation on how to epoxy two pieces of aluminum together. Do you really need the brand name that you'll find at your local bodega? If you work with us we can help you help yourself.

My only concerns with using epoxy is how much of an overlap your two pieces of sheet metal will contain glue, the more overlap the stronger joint. Also if there will be any flexing from vibrations then a rigid glue like epoxy might fail sooner than you like.

Redfred,don't give much concern about GA marks, actually most of it are exchanged between friends on the site, just say about you have from information with no concern about GA marks.

A GA to ya! Almost any epoxy will hold 20 pounds if you clean the surfaces first and clamp the dickens out of the joint.

In a former life, I assembled literally thousands of aluminum tensile shear adhesive test specimens. We could get 2,500 PSI of tensile strength out of good two part epoxies.

As long as the joint isn't in peel the OP should be fine.

I was doing some Lexan assemblies a while back and bought some really stinky epoxy off GE - it smelled like old lizard feet. So, I picked up a piece of scrap aluminum to use as a mortar board. Didn't clean it or anything. I laid it on top of another piece so that I wouldn't drip onto the bench and did my work. I didn't clean up that evening as it was late. Next morning enough had run down between the two pieces of aluminum that I couldn't get them apart even with a hammer. That made a believer of me.

"In a former life" ?

There is no former life, but there is future life and will never be on the earth again.

See my reply in post #14.

Methinks "Guest" suffers from the dread, "I am the center of the universe. Everything I think and say is deep and significant." disease.

JB Weld

I think your answer is fine. It certainly answered the OP directly and would do the job well.

Depending on temperature and surface preparation, cyanoacrylate (those super glues...) should work just fine.