Return to the Tool Shed Forum | Post a Follow-Up

Aluminum repair ( brazing rods ) ?

Posted by rkpatt (My Page) on
Sat, Feb 13, 10 at 12:24

I need to make some small non structural aluminum reapairs . I do not not have access to a TIG or MIG welder with an aluminum set up . Epoxy might work but I am concerned about it failing due to temperature changes . I am contemplating using aluminum brazing rods that I see hyped up video ads ( Almalloy, Durafix , HTS-2000, Muggyweld, etc) . I would probably buy whatever brand of similar product the local welding supply house has . Anyone use them and have any recommendations. -Thanks

Follow-Up Postings:

RE: Aluminum repair ( brazing rods ) ?

Aluminum can be very, very tricky to weld because unlike steel that glows from dull red to bright red to white hot, aluminum just soaks up heat to a certain point and then becomes a puddle on the table or ground below. It takes lots of practice to get it right and when you get it wrong, it can go horribly wrong.

So, I don't know how important these items are to you but sometimes, paying a PRO to take on highly skilled tasks, turns out to be the cheapest solution.

RE: Aluminum repair ( brazing rods ) ?

They were hawking these aluminum brazing rods at a local
county fair type event, a few years ago. The demonstrator
was very adept at welding aluminum pop cans together and
the product appeared to work well. So I got sucked in and
bought them. Oh, and he said it is very important to clean
what you intend to weld with a 'stainless steel' brush,
which they conveniently also were selling. I have tried
them several times since and could not get anything close to a puddle with the rods. I suppose if I want to weld some pop cans together they might work.

RE: Aluminum repair ( brazing rods ) ?

Aluminum melts at 1100 degress brazing rods melt at 725 degress so keep temperature just able 725 degress stick rod to heated metal so tell if temp high enuf melt brazing rod. You melt rod from heat metal not torch flame yes clean with stainless steel brush.

RE: Aluminum repair ( brazing rods ) ?

That aluminum brazing rod worked about like trying to apply plumbers lead to an automobile repair, instead of the auto body lead. You could heat and heat the stick of plumbers lead, and suddenly it would melt and run off the work piece! As for auto body lead, it had a different formula, as it would soften with correctly applied heat, and it could be worked with a wooden paddle, into a semblance of the final form you wanted to achieve, then carefully carved with a body file, then sanded to the final shape.
If you have watched the show on TV, where a shop built Hot-rods, and did custom work, The old guy sitting there leading the cowl of an old Roadster, was how it was done!
Several years after i had left one place of employment, my former employer asked me to come back and lead in a fender on an Alpha-Romeo, because nobody who worked there knew how to apply body lead! Plastic made huge in-roads on using lead for auto body repairs, and now it is hardly used, except for Custom work!

 o Post a Follow-Up

Please Note: Only registered members are able to post messages to this forum.

    If you are a member, please log in.

    If you aren't yet a member, join now!

Return to the Tool Shed Forum

Information about Posting

  • You must be logged in to post a message. Once you are logged in, a posting window will appear at the bottom of the messages. If you are not a member, please register for an account.
  • Please review our Rules of Play before posting.
  • Posting is a two-step process. Once you have composed your message, you will be taken to the preview page. You will then have a chance to review your post, make changes and upload photos.
  • After posting your message, you may need to refresh the forum page in order to see it.
  • Before posting copyrighted material, please read about Copyright and Fair Use.
  • We have a strict no-advertising policy!
  • If you would like to practice posting or uploading photos, please visit our Test forum.
  • If you need assistance, please Contact Us and we will be happy to help.

Learn more about in-text links on this page here