×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Metal on Metal Adhesive; what / where to buy?

Metal on Metal Adhesive; what / where to buy?

Metal on Metal Adhesive; what / where to buy?

(OP)
Hello, I'm typically in the electrical forums so bear with me and feel free to move this post if it's in the wrong spot.winky smile

I want to bond one face of a piece of 3/8" aluminum angle to another piece of black anodized aluminum plate.  Mechanical fasteners are not my first choice, so I'm seeking an adhesive for the job.  

I'm assuming that I'll have to remove the anodizing and any clear coating with a light sanding prior to bonding.  This joint will be holding mostly in sheer, with little concern for tensile strength.  

I would also prefer if the adhesive had a low clamping time, and a medium viscosity?  Not sure how to ask that question; I don't want the adhesive to run away from the joint, but I don't want it to be so thick that it causes a deformation in the piece during clamping.  So I guess it needs to be pretty fluid.  I've got some PC-7 epoxy that I use for just about everything around the house but I know that making it work for this little project is going to be less than ideal.  

What would you guys recommend?  I've seen a glue used in the assembly of speaker drivers (magnet bonding to basket) that didn't require UV to cure or anything like that, and it's rock solid.  I'm thinking I'm looking for an automotive or aero adhesive but don't know what to try.  

Thanks y'all,

RE: Metal on Metal Adhesive; what / where to buy?

There are numerous approaches to your problem with plenty of companies to supply the adhesive.

Here is one  that I've used many times. I would give them a call and discuss your requirements.

http://www.masterbond.com/

RE: Metal on Metal Adhesive; what / where to buy?

Not a fan of magic goo... have you considered brazing or welding?

Beyond that... JB Weld?

RE: Metal on Metal Adhesive; what / where to buy?

Don't overlook 3M.  They make great epoxies, along with cleaners and bonding promoters.

= = = = = = = = = = = = = = = = = = = =
Plymouth Tube

RE: Metal on Metal Adhesive; what / where to buy?

toygasm4u
 Another Manufacturer of epoxy is Dexter Hysol.
 They make a series of toughened epoxies.
  While they do not have the shear strength of some epoxies, they do have a higher peel strength, which can be important if you get a pull straight up on your part.
check out EA 9309 NA, this stuff will re bend two sheets of aluminum being pulled apart.

http://www.mtpinc-exporter.com/chemicals/adh_seal.htm

B.E.

RE: Metal on Metal Adhesive; what / where to buy?

and Bulldog PL Premium... on numerous occasions I've used it to glue metal straps to wood... also works metal to metal.

Dik

RE: Metal on Metal Adhesive; what / where to buy?

LORD ENGINEERED ADHESIVES.  Good stuff, especially for aluminum.

ZCP
www.phoenix-engineer.com

RE: Metal on Metal Adhesive; what / where to buy?

I like some of the super glues - those that are somewhat thick and come with an accelaretor.  Dries in aout 5 seconds. Glue one side - accelaretor on other side - press together and its done.  You don't get a second chance!!!  Very strong.  Hobby Poxy comes to mid available at most hobby shops.

RE: Metal on Metal Adhesive; what / where to buy?

You have to define the loads before anything else. Epoxy can be very strong and stiff. Stiff can be good or bad. 3M's VHB adhesive tape may be the best thing for you. The bond is almost instant and will comply with variable gap. No clamping required.

RE: Metal on Metal Adhesive; what / where to buy?

I am astounded that none of the postings so far have mentioned surface preparation. The best adhesive and the best joint designs will always fail eventually unless the surface is correctly prepared. Don't be fooled by "Adhesive X is better than adhesive Y" because all that will change is the colour of the disbond surface.

I strongly recommend that you Google DOT/FAA/AR – TN06/07, Apr 2007. This is a document titled Best Practice in Adhesive Bonded Structures and Repairs. It explains the mechanisms involved in forming durable adhesive bonds and outlines the basic steps involved. Once you digest that, then select adhesive X or Y.

Failing that contact me at admin at adhesionassociates dot com.

Regards

blakmax  

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources