JB Weld vs. 3M Panel Adhesive

Discussion in 'Body Restoration' started by NeoNeuro, Sep 24, 2017.

  1. NeoNeuro

    NeoNeuro Veteran Member

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    Hey Guys,

    Is JB Weld a suitable substitute for 3M Panel Adhesive? It's around $85 to get a tube of panel adhesive, the gun, and mixing tips. JB Weld is about $5 a pack. Huge price difference!

    I want to move the fender vents on my 78 Z28 to the inside of the fender. Gluing seemed to be a better option than welding. I read a post on here a while back where someone used panel adhesive, but I wasn't expecting it to be laced with gold. :D What do you think? Thanks.
     
  2. jimrr

    jimrr Veteran Member

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    no, not even close..............
     
  3. PalmbchZ28

    PalmbchZ28 Veteran Member Gold Member

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    J-B Weld .....JB Stands for just barely.
     
    Last edited: Sep 24, 2017
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  4. Gary S

    Gary S Administrator Lifetime Gold Member

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    The JB weld I'm familiar with is metal and works on metal surfaces that don't flex. Panel adhesive is for plastics and other materials that flex.
     
  5. budro6968

    budro6968 Veteran Member

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    Look at the end where he shows how he mounted the vents in side. Pretty slick and removable.
     
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  6. mark wagner

    mark wagner Veteran Member

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    panel bonding adhesive is specifically for metal.
     
  7. NeoNeuro

    NeoNeuro Veteran Member

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    Thanks everyone. I think I'll just break out the MIG. A little more work, but a whole lot cheaper.
     
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  8. tom3

    tom3 Veteran Member

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    Never had a bad experience or failure with JB Weld. Amazing stuff. Have used it to "weld" nuts in a no access area and bolt on a part, worked fine. I wouldn't hesitate to use it on those vents either.
     
  9. FlaJunkie

    FlaJunkie Veteran Member Lifetime Gold Member

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    I think JB can handle the vents with no issue. I used it to seal a crack in my oil pan while it was on the car.
     
  10. 70lt1z28

    70lt1z28 Veteran Member Gold Member

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    JB Weld is good stuff for sure. There is a youtube video where a guy used it to cast a complete lawn mower engine head with the stuff. The engine ran for like 5 minutes until it eventually cracked, probably from the heat.
     
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