Plastic welding vs. JB Weld

Discussion in 'Mechanical & Technical' started by Lynk, Oct 28, 2006.


  1. Lynk

    Lynk
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    What are the advantages/disadvantages of plastic welding versus JB Weld on a "bullet"-style mounting tab?

    Here's a picture of what broke:

    [​IMG]
     
  2. JTR

    JTR
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    You might possibly be able to get away w/ using Plasti-weld, I've found the stuff in the black dispenser(sp) to be stronger than that in the clear dispenser

    Im thinking it might bond a little better due to the chemical reaction ,than the JB

    I know theres a guy on CF that can weld plastic (Lauralynn's ol' man or??)

    good luck to you w/ it
     
  3. james1300

    james1300
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    JB is more accurate, for this job. It can be applied excatly where ya want it, in this case, an interferance fit, must be close to perfect.
     
  4. Speed_Demon

    Speed_Demon
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    They are both right but I would plastic weld it. Plastic weld will make one solid piece rather than jb weld adhering two pieces together. If you do jb weld it rough the shit out of the surrounding area and apply widely to give it something to grip to.
     
  5. rowlex

    rowlex
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    i was told by a very experienced mechanic that plastic welded my fairings that plastic welding mounting tabs isn't the best idea. He suggested JB weld. I forget why...
     
  6. soggydoo

    soggydoo
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    when i jb weld i get someof the wall repair mesh (4 bucks ) and cut a strip to help with the strengh of the repair
     
  7. JTR

    JTR
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    I wasn't awake enough to notice "bullet style" mounting:angry7: :mrgreen:

    I'd also opt for JB over Plasti-weld in that sitch

    but a actual plastic welder would be best IMO

    Soggy... great tip! Im gonna use that 1 next time I need!!
     
  8. Lynk

    Lynk
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    That's three for JB... I'll go that route. Thanks guys!

    I'll post a pic of the finished job, in the morning.
     
  9. Wrench

    Wrench
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    2-part plastic epoxy.

    WAY better than "plastic welding" with heat, chemically bonds itself in a way that no other epoxy can beat, and still maintains the original (though small) bit of flexibility.

    Get it at Wally World, or just about any auto parts place. Usually comes in a black plastic dual-syringe style. I prefer the Devcon brand, but just about all of them are the same.
     
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