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  1. #1
    EZ Dock of Long Island Shibby1485's Avatar
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    Help Welding / Epoxying Plastic - Need strongest stuff on earth?

    I've got a piece of ABS plastic and PVC i'm trying to fuse together PERMANANTLY. Needs to be really rigid, strong stuff that's not gonna snap and break on me.

    I've tried Loctite 2-part Plastic Epoxy - it cracked

    I've tried initially tacking it together with all purpose PVC/ABS/CPVC cement - didn't do chit!


    Who has the lowdown for me? The strongest type of penetrating abrasive acidic adhesive known to man, what's gonna do the job for me? there's not much flat contacting surface area... rather a curved surface being clued to a 1/4" wide flat surface

    i know it's gonna get messy, i know i gotta smother whatever i'm gonna use all over the freaken place, but if i'm gonna make a mess, i want it to be worth it and never break apart on me.



  2. #2
    Nonstop, all day, everyday. 01xdime's Avatar
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    Camel Jizz........j/k try using a big soldering iron Steve and stitch it together then rough the surfaces up. I don't know what to tell you as far as an epoxy but i'm sure there's something out there that will stick you to your project good enough to require surgical removal.

  3. #3
    75 mph on a budget TorquePhoto's Avatar
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    get a good 3M 2 part epoxy....that should doo it.....

  4. #4
    AKA: Larry lafjax's Avatar
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    Shibby, how about some industrial strength Cyanoacrylate (CA) glue. It will hold tight if there is no flex in the surface. Get the thick or medium kind and let it cure well. You can build up a surface and fill in to make it stronger. If the joint flexes it will crack because it's so hard but if no flex it will hold well.

    Here's one source: http://www.ainplastics.com/public/di...ts.jsp?id=5.21

  5. #5
    R-Doo's Avatar
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    I've heard some people who work on motorcycle fairings use a plastic welder. You might check with a shop that has some racers as mechs. They could give you a lead.

    Here's a welder.
    http://www.harborfreight.com/cpi/cta...emnumber=41592

  6. #6
    Nonstop, all day, everyday. 01xdime's Avatar
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    Quote Originally Posted by R-Doo View Post
    I've heard some people who work on motorcycle fairings use a plastic welder. You might check with a shop that has some racers as mechs. They could give you a lead.

    Here's a welder.
    http://www.harborfreight.com/cpi/cta...emnumber=41592
    Wow thats too cheap not to buy. That could really come in handy. Thank god for harbor freight.

  7. #7
    lugnut's Avatar
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    I've put teflon to teflon using gorilla glue
    This application has seen over 8months of very harsh punishment in a industrial application & has no signs of losing the integrity of bond

  8. #8
    EZ Dock of Long Island Shibby1485's Avatar
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    bottom line.... Billy Pettis (RX951) is a GENIUS ...

    i've been calling him picking his brain all week about this project and welding plastic... he told me what to do, my solder gun sucked and it didn't work, i figured ok his idea wont work for me... i blew it off, tried other ideas... called him again 2nite and before i knew it i was in home depot getting a 140 watt soldering gun and zip ties

    IT WORKS!~ Billy you are the man!

    see this thread:
    http://www.greenhulk.net/forums/show...t=weld+plastic

    i'm going to do his trick along all the mating surfaces and edges... then smear PVC cement across it for sealing and strength.. i think that'll do the trick

  9. #9
    75 mph on a budget TorquePhoto's Avatar
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    so tell us what your making??!!

  10. #10
    Moderator RX951's Avatar
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    Quote Originally Posted by TorquePhoto View Post
    so tell us what your making??!!

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