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Harbor Freight Plastic Welders

Discussion in 'The Tool Shed' started by ITLKSEZ, Jan 11, 2018.

  1. Jan 11, 2018
    ITLKSEZ

    ITLKSEZ Volvophilic

    Post Falls, ID
    Joined:
    Aug 13, 2015
    Messages:
    2,139
    Any of you have one?

    There are two designs. One is cheap ($17) and looks like a soldering iron, and the other is ~$65 and blows hot air through a straw.

    Which is better? Pros/cons of each?

    Couldn't I achieve the same thing by making a straw-tip for a regular $14 heat gun? Or am I overlooking something?
     
  2. Jan 11, 2018
    duffer

    duffer Rodent Power Sponsor

    Bozeman, MT
    Joined:
    Sep 17, 2009
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    2,334
    The one I bought from them looked a lot like this one:
    800 Watt Plastic Welding Kit with Adjustable Temperature

    It also had a pressure regulator and had to be connected to compressed air.

    It worked great.














    For maybe 15 minutes----------------------------------------------------------
     
    ITLKSEZ likes this.
  3. Jan 11, 2018
    Mcruff

    Mcruff Earlycj5 Machinist Sponsor

    Albertville, AL
    Joined:
    Sep 22, 2002
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    4,686
    We have a nice one at work but the air is needed to make them work good regardless of price.
     
  4. Jan 12, 2018
    PeteL

    PeteL Member Sponsor

    Hills of NH
    Joined:
    Aug 3, 2003
    Messages:
    5,594
    Been There Done That.
    :beer:


    In some cases the cheapo tool is enough to try out, for "proof-of-concept," then I buy a quality version.

    In another case, HF sent the parts, and it has run like a champ for another five years now.

    I've been wondering about a plastic welder…..
     
  5. Jan 26, 2018
    jeepstar

    jeepstar Member

    Sheboygan
    Joined:
    Jun 28, 2006
    Messages:
    862
    me too...my riding lawnmower has a flip up seat to access the engine, and the plastic housing is cracked and breaking to the point of needing to be replaced.
    there was an "as seen on tv" magic plastic welder that I saw at Walmart. wife said it isn't worth 18 bucks. a new shroud is about 400 bucks. I'm not spending that on that.

    I will check out the harbor freight model for sure. i don't have much more than a one time use intended for it, and I only need it to work great for 15 minutes!
     
  6. Jan 26, 2018
    jjdebarros

    jjdebarros Sponsor Sponsor

    Spokane, WA
    Joined:
    Dec 26, 2017
    Messages:
    28
    ITLKSEZ, what are you trying to weld?

    I repaired various plastic parts on a GMC Motorhome with the 'soldering iron' type.

    The headliner was cracked and spreading in numerous locations.

    I was able to weld in some wire mesh that appears to have fixed the problem.

    I used the following: Polyvance 5700HT Mini Weld Model 7 Airless Plastic Welder - - Amazon.com

    I'm in Spokane, just across the border, if you want to try it out...
     
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  7. Jan 26, 2018
    ITLKSEZ

    ITLKSEZ Volvophilic

    Post Falls, ID
    Joined:
    Aug 13, 2015
    Messages:
    2,139
    Thanks for the offer! That's kind of you. It's a future project, but I have some motorcycle fenders and an airbox I was going to try to cut and stick back together. When the time comes, I might just hit you up on that. Good to hear you've had success.
     
  8. Jan 26, 2018
    jjdebarros

    jjdebarros Sponsor Sponsor

    Spokane, WA
    Joined:
    Dec 26, 2017
    Messages:
    28
    I've been buying up all of the food strainers in Goodwill for the stainless steel mesh.

    As the cost online for the mesh is quite high.

    Or as they say in the south, 'They are mighty proud of that product'
     
  9. Jan 28, 2018
    timgr

    timgr Jeepin' Nerd Sponsor

    Medford Mass USA
    Joined:
    Aug 10, 2003
    Messages:
    18,739
    Long Google Groups thread about joining polyethylene and polypropylene (PPE, likely what you gas tanks and fenders are made of) - Google Groups

    There are apparently some adhesives that can used with an activator to join PPE. Plastic welding seems like an easier approach.
     
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