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01-31-2016, 09:54 PM | #1 |
Not Yet Wild
Join Date: Feb 2015
Location: Central Oklahoma.
Posts: 48
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Plastic welding--gas tank repair
I've searched the forums for plastic welding specifics and really couldn't find much info out there (It may be there and I just missed it).
Anyway, I had a punctured Workhorse gas tank and thought I'd try my hand at repairing it. I got this assortment of plastic welding rods and used a green PP/PC rod and a soldering iron. I cleaned it up good with alcohol and started melting the filler into the base plastic. It all melted together very well and I feel like I got pretty good "penetration" with the soldering iron. After it cooled down I checked it with water....no leaks. I'm pretty confident it'll hold fuel well. http://t.harborfreight.com/50-piece-....google.com%2F Anyone know if this same rod will work on a crack on an ST cowl? Hope this helps some more of you folks with leaking fuel tanks. |
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01-31-2016, 10:50 PM | #2 |
Gone Wild
Join Date: Jul 2013
Location: Juliette GA
Posts: 271
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Re: Plastic welding--gas tank repair
Somewhere on the cowl should be a symbol saying what kind of plastic it is. I would think it would plastic weld just fine. I use a surface mount soldering air gun to do my plastic welding. has some precise tips to control the heat.
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02-01-2016, 12:18 PM | #3 |
Gone Wild
Join Date: Jul 2015
Location: Metro Detroit
Posts: 449
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Re: Plastic welding--gas tank repair
If it were me, I would just replace the tank. Maybe it can be repaired and be just fine. But it is a gas tank, and if there is an issue with it, that can turn quite serious. If I could fix it for $1 and be 99.9% sure it would be fine, or replace it for $100 I would replace it. Just me but I do not believe in saving money where safety is concerned.
Tom |
02-01-2016, 11:27 PM | #4 |
Not Yet Wild
Join Date: Feb 2015
Location: Central Oklahoma.
Posts: 48
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Re: Plastic welding--gas tank repair
Thanks for the input.
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02-01-2016, 11:40 PM | #5 | |
Gone Wild
Join Date: Jul 2015
Location: Metro Detroit
Posts: 449
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Re: Plastic welding--gas tank repair
Quote:
Tom |
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02-02-2016, 09:14 AM | #6 | |
Not Yet Wild
Join Date: Feb 2015
Location: Central Oklahoma.
Posts: 48
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Re: Plastic welding--gas tank repair
Quote:
I've never heard of or seen anything like what you're describing. It looks like its called a "hot stapler". I didn't see it on Harbor Freight's website, but Google says that various models can be obtained from several online vendors. I'm not sure if my small crack is worthy of the investment, but I'm seriously considering it......you've definitely expanded my "body work" knowledge! thank you, TomStark |
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02-02-2016, 10:14 AM | #7 |
Gone Wild
Join Date: Sep 2012
Location: Missouri
Posts: 2,755
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Re: Plastic welding--gas tank repair
I plastic welded a gas tank on a 4 wheeler at one time but it was just a crack. It held fine as long as I had the 4 wheeler, over 3 years.
I have a good plastic welder just like the one Snap On sells. It came with many different rods including one that is flat and they call universal. It explained how to tell which plastic you have and there are even melt tests I found on line that will help. I've thought about one of the staplers too, but just not jumped on it yet. |
02-02-2016, 10:20 AM | #8 |
Gone Wild
Join Date: Jul 2015
Location: Metro Detroit
Posts: 449
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I have my moments! Lol!
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