Register now to get rid of these ads!

Technical Attaching metal to metal question

Discussion in 'The Hokey Ass Message Board' started by 1pickup, Jul 26, 2021.

  1. 1pickup
    Joined: Feb 20, 2011
    Posts: 1,078

    1pickup
    Member

    OK, I have a dumb idea to use some 1" tall, 1/8" thick laser cut metal letters on one of my builds. The "correct" way, would probably be to make a jig & "emboss" the letters into the panel. But, if you were gonna take the easy way out & attach them to sheetmetal (think dashboard, fender, etc.), how would you do it? First thought was to mig weld the perimeter, but all that grinding sounds like work. I don't have a tig, so don't suggest it. I'm considering drilling holes & rosette weld from the back side. I have no experience with panel bonding agents, but that seems like an option as well. Thoughts?
     
    loudbang likes this.
  2. manyolcars
    Joined: Mar 30, 2001
    Posts: 8,494

    manyolcars

  3. As long as it is not on an area that is going to flex or twist a lot I would panel bond it. That will give you a complete seal against any moisture getting behind it. You can get panel bonds that work in a regular caulking gun so no need to worry about specialized guns.
     
  4. gimpyshotrods
    Joined: May 20, 2009
    Posts: 18,376

    gimpyshotrods
    ALLIANCE MEMBER

    This.
     
    1pickup, Stogy and loudbang like this.

  5. Torana68
    Joined: Jan 28, 2008
    Posts: 1,259

    Torana68
    Member
    from Australia

    Silver solder if it’s somewhere won’t distort with heat , tig maybe
     
  6. Mike VV
    Joined: Sep 28, 2010
    Posts: 2,396

    Mike VV
    Member
    from SoCal

    Not only are modern cars bonded together (BMW, Jaguar, Porsche, Corvette, etc), but every airplane that you fly in has more glue in it, than rivets..!

    This is a hint...

    Mike
     
    fauj and loudbang like this.
  7. Glue don't warp....
     
    Stogy and loudbang like this.
  8. JimSibley
    Joined: Jan 21, 2004
    Posts: 3,377

    JimSibley
    Member

    Panel bond for sure!
     
    jetnow1, Stogy and loudbang like this.
  9. But glue isn't traditional!
     
    slayer, Flathead Dave and Budget36 like this.
  10. 1pickup
    Joined: Feb 20, 2011
    Posts: 1,078

    1pickup
    Member

    @gimpyshotrods & @K13 are some opinions I value greatly on this board, so I think I have my answer. Now, just need to find the cheapest & smallest tube out there. Thanks guys!
     
    loudbang and catdad49 like this.
  11. How about double stick tape. It’s been used on new cars for the last forty plus years.
     
  12. harpo1313
    Joined: Jan 4, 2008
    Posts: 2,262

    harpo1313
    Member
    from wareham,ma

    You buy the cheapest stuff , you will not be happy with the results.
     
    warhorseracing likes this.
  13. akoutlaw
    Joined: May 13, 2010
    Posts: 905

    akoutlaw
    Member

    Find an automotive paint supply store that sells a product called Fuser (sometimes referred to as "Lord Fuser"). It is a two part epoxy made for bonding like & unalike automotive panels & parts. There are different types available for different materials, but I would think that you would want one designed to bond metal to metal. They are available in a slow, medium, & fast set types. They offer small tubes & application guns or large "caulking gun" style for larger usages. FUSER CHART.jpg
     
    loudbang and fauj like this.
  14. gimpyshotrods
    Joined: May 20, 2009
    Posts: 18,376

    gimpyshotrods
    ALLIANCE MEMBER

    Actually, that's a really good point.

    The double-sided tape you'd want is called 3M VHB (short for very high bond).

    It is actually used in hot places like Dubai and the UAE to hold glass to steel skyscrapers.

    Have a look here: https://www.3m.com/3M/en_US/vhb-tapes-us/
     
    loudbang likes this.
  15. squirrel
    Joined: Sep 23, 2004
    Posts: 49,326

    squirrel
    Member

    you can find it disguised as Scotch Mount tape in retail stores, eh?

    I have a huge roll left over from robotics stuff....
     
    gimpyshotrods likes this.
  16. gimpyshotrods
    Joined: May 20, 2009
    Posts: 18,376

    gimpyshotrods
    ALLIANCE MEMBER

    We use the hell out of it on our test cars.

    Need to temporarily attach a test sensor?

    Tape it on!
     
  17. ekimneirbo
    Joined: Apr 29, 2017
    Posts: 2,001

    ekimneirbo
    Member
    from Brooks Ky

    You are saying its a metal to metal situation. Are you going to paint over the lettering after its bonded, or is one surface going to be painted already?
     
  18. nochop
    Joined: Nov 13, 2005
    Posts: 2,125

    nochop
    Member
    from norcal

    Well placed rivets?
     
  19. nochop
    Joined: Nov 13, 2005
    Posts: 2,125

    nochop
    Member
    from norcal

    Well placed machine screws?
     
    1pickup likes this.
  20. Mike VV
    Joined: Sep 28, 2010
    Posts: 2,396

    Mike VV
    Member
    from SoCal

    Yeah, as mentioned above, "tape". Cheap and easy to get. As long as the letters have the same shape as the panel (flat ?). The tape is about .06" thick, so any differences in the letters to the panel should be less than .06" different.

    I've mounted a few things with this stuff... https://www.lowes.com/pd/Scotch-Mount-1-in-x-5-ft-Two-Sided-Tape/1002430894


    Some emblems on a non-NAMB car, an MSD box (NOT light) to the fire wall, the fuse box to the fire wall. You can get the parts off, but you'll need some fine wire and something to separate the parts. VERY...sticky stuff.

    The emblems on my non-HAMB car have been there for just over two years now, with no signs of coming off. And the car sits in the 100°+ SoCal sun..!

    Mike
     
    TrailerTrashToo likes this.
  21. silent rick
    Joined: Nov 7, 2002
    Posts: 4,360

    silent rick
    Member

    i just cut this boat in half to show you the amazing power of....oh, nevermind
     
    Just Gary, fauj, 1pickup and 2 others like this.
  22. 1pickup
    Joined: Feb 20, 2011
    Posts: 1,078

    1pickup
    Member

    Maybe I need to be a "little" more specific. Letters are raw, no chrome, etc. They will be attached to raw sheet metal. Yes, I will be painting over them. Same color as the body, so they disappear (sort of). They will be on the outside of the car, in the weather. Was looking for a permanent attachment, but hadn't thought of small machine screws from the back side. That could be an option. But, I think the panel bonding agent seems like the way to go.
     
    ekimneirbo and nochop like this.
  23. Panel bond is definitely the way to go for what you want to do.
     
  24. BJR
    Joined: Mar 11, 2005
    Posts: 6,998

    BJR
    Member

    How about Spot Welding the letters on?
     
  25. A 2 B
    Joined: Dec 2, 2015
    Posts: 187

    A 2 B

    DSC06701.JPG JB Weld will bond well and you only need to run your finger around the perimeters to achieve a water proof seal, finished to perfection before it sets. It is a paintable, fast and easy way to do what you want. I did something similar today. I'll go take a pic and edit this post.

    Edit: I cut a diagonal slice off an old fire extinguisher to create a heat shield around a Fenton header. I did tack it with the MIG but the JB weld would have held. I was just concerned about the heat on the JB.
     
    Last edited: Jul 27, 2021
    loudbang and fauj like this.
  26. blue 49
    Joined: Dec 24, 2006
    Posts: 1,409

    blue 49
    Member
    from Iowa

    Windshield urethane would be another suggestion.

    Gary
     
    Hollywood-East likes this.
  27. 1932tub
    Joined: May 31, 2005
    Posts: 405

    1932tub
    Member

    I have done this before on an F100 tailgate by sweating on the letters with solder, similar to body soldering
    worked perfectly.
     
  28. Hollywood-East
    Joined: Mar 13, 2008
    Posts: 1,464

    Hollywood-East
    Member

    3M Two part structural adhesive, Used for rubber bumper repairs... An a million other things once you have it in your shop, An it's just two tube's, So it won't get Funky after use...
     
  29. ekimneirbo
    Joined: Apr 29, 2017
    Posts: 2,001

    ekimneirbo
    Member
    from Brooks Ky

    I think I would put some paint on the metal before attaching the letters. Sealing the metal against possible future moisture and rust problems. Newer vehicles have letters glued to the paint all the time and they hold up well.
     

Share This Page

Register now to get rid of these ads!

Archive

Copyright © 1995-2021 The Jalopy Journal: Steal our stuff, we'll kick your teeth in. Terms of Service. Privacy Policy.

Atomic Industry
Forum software by XenForo™ ©2010-2014 XenForo Ltd.