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gluing/fusing pla parts

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    gluing/fusing pla parts

    Hello, I've been printing for about a month now. I mostly print simple mechanical devices. I am wondering, what is the best option to glue/fuse/chemical-weld pla parts together?
    I have tried crazy glues, some that make a lot of white and don't hold at all, and others that seem to bond but don't hold up.
    I know people use chemicals for abs that actually fuse the material together. Can anyone tell me of a product that would work similarly on pla?
    Also I was considering trying jb-weld, I haven't tried it yet. It may eat the pla.
    Last edited by Mike00; 02-17-2019, 08:53 AM. Reason: spelling

    #2
    The best thing I've found that really works on PLA is Methylene Chloride. It actually welds the parts together! You could also use "EMA Plastic Weld" if it is available in your neck of the woods, don't know where you are! This stuff also welds ABS...

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      #3
      Thank you, I had came across this stuff in searching. I guess it's also called dichloromethane. I want to buy some. I live in southern Illinois, but often stuff like this with such a limited market is cheaper online. I find it on ebay for about $20/4oz, $30/qt, $60/gallon. Do you know of a cheaper source? Do you use this chemical straight or do you mix in any other chemicals? Does the process require the surfaces to be primed with something? What's the working time? Clamp/cure time?

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        #4
        Iíve used this quite a bit and it seems to work pretty well:



        As an example, all the green bins are glued in at odd angles, touching only on tangent points, and itís solid:

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