Plastic welding?
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    Plastic welding?

    My Hustler zero turn has developed a bunch of holes in the plastic tanks. Hustler doesn't sell those tanks anymore and I can't locate them anywhere. I got online and found plastic welders, they start at $20 and go up from there. I found several websites showing how to do it with a soldering iron and the same types of plastic. I've been practicing with a 20 gallon bleach barrel by drilling 1/4" holes and filling them in with plugs that I cut from the barrel, seems like it makes a really solid weld.

    Anybody have experience with this?

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    What model of Hustler do you have????

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    I haven't done it myself but I've seen it done with a heat gun and strips cut from a gallon milk jug.
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    Speedway motors used to sell a gas tank lining goo, like thick paint but remains flexible and impervious to petroleum products. Might be a good idea once the holes are welded.
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    Quote Originally Posted by jimb1972 View Post
    Speedway motors used to sell a gas tank lining goo, like thick paint but remains flexible and impervious to petroleum products. Might be a good idea once the holes are welded.
    Like this: Caswell Epoxy Gas Tank Sealer - Mini Kit (Up to 3 Gal) - Gas Tank Sealer - Caswell Inc

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    Quote Originally Posted by mark38090 View Post
    My Hustler zero turn has developed a bunch of holes in the plastic tanks. Hustler doesn't sell those tanks anymore and I can't locate them anywhere. I got online and found plastic welders, they start at $20 and go up from there. I found several websites showing how to do it with a soldering iron and the same types of plastic. I've been practicing with a 20 gallon bleach barrel by drilling 1/4" holes and filling them in with plugs that I cut from the barrel, seems like it makes a really solid weld.

    Anybody have experience with this?
    Linear polyethylene can be welded; cross-linked cannot (or at least it is much harder). Your tank is probably linear poly.
    Now to density. If the tank is high density PE (HDPE) you can use either HDPE rod (stronger) or LDPE rod. If your tank is LDPE, use only LDPE rod.
    Clean all surfaces with MEK. Ventilation is paramount! Like other welding, you need to heat both the rod and substrate to get them to fuse. A good joint requires around 300C.
    It can be done with just an iron, but IMO, you get better control and a better joint with a hot air welder.

    Oh yeah, for even better results get an ultr$onic welder.
    Last edited by MadKaw; 04-19-2017 at 08:08 PM.
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    What Mad Kaw said. I worked for a company that used plastic welding to refurbish parts and it's an art. And the process is fraught with peril. Mess it up and you have a lot of plastic scrap. If you attempt the plastic welding option, make sure you have the cash to fund the alternative.
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    I've welded both PVC and HDPE without issue. Knowing what material you are working with is the key. You can use a welder like the one in the link, just like if you were blazing or TIG'ing with a filler rod. One question, why or what caused the tanks to leak in the first place? UV causes the plastic to become brittle, JUNK..

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    What model do you own, have you checked ebay or online part stores for old stock to see if a replacement tank can be found, or for that matter for something that is similar enough to work, even if it is more rigged
    Its never wrong, it just hasn't been fixed right yet.
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    It's a FastTrac 48" Model 928520.Name:  20160920_180656-1512x2016.jpg
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Size:  936.0 KBName:  20160920_180354-1512x2016.jpg
Views: 49
Size:  834.2 KBName:  20160920_180505-1512x2016.jpg
Views: 49
Size:  662.9 KB

 

 
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