Best Plastic Welder? Weld Repair Stronger Than New? Let’s find out!

Best Plastic Welder? Weld Repair Stronger Than New? Let’s find out!

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Can the welders restore plastic to it’s original strength or even stronger? Let’s find out! Let’s compare several plastic repair options using two types of plastic welders. Plastic welders compared for repair strength on HDPE, ABS, and Polycarbonate.

I bought all of the products and supplies used to compare the welders to ensure an unbiased review. So, thank you for supporting the channel!

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➡ Products Tested In This Video (in no particular order):
Beyondlife: 
RXXXWELD: 
OIMERRY: 
JOUNJIP: 
Allturn: 
Ryobi Hot Glue Gun: 
J-B Weld Plastic Bonder: 
J-B Weld Original: 
 
Videography Equipment:
Sony DSC-RX10 III Cyber-shot Digital Still Camera:
Canon 70D Camera:
Azden Microphone:
Go Pro Bundle:

This video is only for entertainment purposes. If you rely on the information portrayed in this video, you assume the responsibility for the results. Project Farm LLC..(read more at source)



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39 Comments

  1. Maybe I am crazy but it seems to me that the heated surface is a BACKSTOP and that you should be feeding the plastic rod THROUGH the hole, from the other side. So that the melted plastic FILLS the gap, instead of just being a bandaid pasted over the outside?
    I've not done this before, but it would be the first way I would try to use it, because you don't want to patch over the hole, you want to FILL the hole.

  2. First: I love your Chanel 😅Stick to what you know 😅I hate to say it, but you are not a welder 😅 Especially with plastic. Plastic welders use a very different style. Just saying 😅

  3. If the staples can be inserted from the back side via tight fitting drilled holes and "pull" melted to thickness center.
    A wire mesh could be guided through the pins to be melt pressed into the plastic.
    Staples pulled from the opposite direction may also help sandwich the mesh.

  4. Excellent video in that you test many applications, your test parameters are consistent, LOVE the pace of your video as we need facts and not "er, um, well, etc." Sub'd and liked my friend! I bought the FGRSRZ 𝟐𝟎𝟎𝐖 Plastic Welder, Plastic Weld Kit from Amazon, which is like the Allturn, and the only issue with it is that it does NOT have a "feed" style tip you can slide rods into. I will be buying the Jounjip as well, and in no small part to YOUR video!

  5. These are BUTT WELDS. Most difficult to repair. Jb weld is going into the broken crack which helps. He's not welding into the divided broken area. He's just doing surface weld only.

    This wasnt the best scientific test he's done. He's welding skills need improvement. sorry.

  6. I absolutely love your reviews HOWEVER this is definitely flawed. The non heat methods are more surface bond and the Heated methods MUST BLEND the existing material with or without added rods or other material. Please dont take this the wrong way. We love the reviews, this one was the only one that i knew would fill the comments with issues.

  7. There is a particularly tricky aspect to repairing some types of plastic: the material can shrink (like "heat-shrink" tubing). The tension of this shrinking will pull apart the "repair", just as soon as it is melted.

  8. When doing plastic repairs, I find the most important thing is to use filler material that is exactly the same as the part you are repairing. In your video section where you tested the beyonlife it appeared the clear rod you used was very incompatible with the buckets black plastic, kind of oil and water like.

    There are several ways to flame test plastics to determine what material family they belong to, though with so many alloys and fillers used this may not be close enough.

    I typically cut out a piece of material from a related scrap part to use as filler material. Much better results that way.

  9. At the auto body shop I work at we use an off-the-shelf wood burning kit with adjustable temperature and multiple tips. We use the sharp, thin, angled tip to make "stitches" across the break, then use the thick flat tip to smear the melted plastic into the stitches, then put metal mesh on that and heat the metal mesh with that same flat tip until it melts itself into the original plastic. The only time we even use welding sticks is if the material is very thin to reinforce the back side of the repair. It works shockingly well. We have had customers on two occasions later have another accident impacting the repaired area and it's strong enough that the repair was intact and the bumper cover ripped or broke next to the repairs instead, which shows it's actually stronger than before we repaired it. Basically, a good repair should penetrate beyond the surface and preferably go all the way through the material. Melting the metal mesh INTO the material was the real game changer. It's like rebar in concrete. You end up with a piece that is stronger than the sum of its parts.

  10. ABS repairs are best performed by solvent welding. JB Weld Plastic Bonder is better suited if you need more flexibility than epoxy. I do plastic welding with a temperature controlled soldering iron with a huge tip. Granted, it's a $600 iron so it may not be a fair comparison. That hole through the heating tip to feed the filler rods is a great idea. To obtain better penetration you may want to bevel the edges that you are joining together so that you can start at the middle and build up the plastic from there.

  11. I’m not sure if using an old weller soldering gun and the various paper clip assortment packages . Have you or your viewers tried ..? I will update if I’m successful sometime in the future .

  12. Lol this was a tough one; he was a good sport for giving it a go. Plastic welding technique can be hard to master and how you do it makes a huge difference. But since he did all of them the same, as always it's a fair test! 👍🏻

  13. The thing with coffee is it's subjective. Describing coffee, what you like about an experience etc., that all takes skill: knowing how to taste, how to express that and what language to use…. It takes a lot less skill to take a picture and post it saying how'd I do and feel part of a community

  14. I think you should remake this video after having some proper training with these tools.

    The study you just did was heavily flawed as the tools and methods weren’t correct

  15. I do plastic welding and the first thing I see it's obviously you don't know how to use those tools the right way . So for me your tests are not good at all. welding plastic it's like welding metal. Learn how to properly use it first. before making any test

  16. I have an 85 Honda 350x with a hole from where the fender/seat plastic melted over the header so I need a plastic welder and a matching red plastic.
    I think it’s hdpe? Or ldpe? Anyone know what plastic is used?

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