J-B Weld 8217 TankWeld Gas Tank Repair - 1 oz.,Dark Grey

i came to my car (scion xb) one day and there was a huge puddle of gas under it. something must've come up from the road and put a small, pencil-sized hole in the tank (tank is plastic, with fiber mesh reinforcement). had enough fumes to make it to the nearby toyota service center and was told my only solution was a new, $1200 fuel tank. so i had AAA tow it to my house, and had amazon deliver a tube of JB Weld same day for less than $15. next day i was up and running again. it's been a few weeks now and i believe the repair is permanent -- no moisture or indication that the repair won't last. it's as easy to use as you'd hope and seems to work equally well. saved more than $1185, so i couldn't be happier. 2 thumbs way up. UPDATE: failed after about 5 weeks. i was convinced i had a permanent repair after 3 weeks, but my repair started to drip. my gas tank is plastic (2008 scion xb) and the repair is on the bottom. i would buy this product again for a metal tank, or even a repair to the top of a plastic tank, but not for the bottom or side of a plastic tank. bummer. i still give it 5 stars, as the company website warns it does not work on some plastic and i am sure it works well for metal tanks.

Works better than expected! Highly recommend. Great product. Im buying it again.

Used it to fix a hole in a metal fourwheeler gas tank and it's worked great so far. Easy to use and stayed in place.

Drove over a large rock, and punctured a small hole in my 50 gal RV fuel tank. Was planning to have the tank removed, repaired, and replaced at a cost of $700, but decided to use this epoxy to patch and seal the leak. So far its working as advertised. Simple to apply - epoxy is holding with no apparent moisture or leaking. Very cost effective repair.

Didn’t work on my application plastic fuel tank I have used it before and it works on other things

I can not believe how versatile this stuff is. I bought it to seal a motorcycle tank that had developed a micro fracture. For a long time I could not locate the leak and fuel slowly just kept beading out. Eventually I bought a tank sealant coating that cost around 40 dollars to fix the issue. Then I took off my tank I finally found the spot that had been leaking since the gas had polished the spot up real nice for me over time. The spot came from a point that rested directly on the frame of the bike and was punctured into ever so slightly when I hit the side of my tank to knock a dent out. After finding the cause I bought this much easier alternative. Once my tank was removed and the gas emptied it was an easy matter of applying the mold to the damaged spot. Instructions say to kneed up the putty really good before applying which I did, they also state to wear gloves which I did not. No damage done! Just make sure if you don't want to ruin or wear gloves that you wash really well after, don't get the product under finger nails or in cracks in your skin etc. and you will be fine. I wasn't in any rush and let this product set for a day before using. Since the gas leak has pretty much already prepped the area for me I did not use any sand paper or other method of detailed preparation before applying the putty. When you're done using the product (I used about 1/10th of what it came with) it comes with a reseal-able tube that you can store it in. This product is very versatile and I could not be happier that for less than 10 dollars my motorcycle tank is repaired and I have another tool on hand for when I need it.

What can I say...its JB Weld. Works on anything!

Just as decribed.

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Item is 1 x 2oz

repaired a leaking outlet in a plastic gen set tank

Had a hole in my Tomos A35 fuel tank. Size of the hole was around 3mm. After letting it cure for 2 hours and adding fuel to tank, it is not leaking anymore. Update after 2 months: Still holding strong with no leaks

After year tank is still dry outside so this seems to be holding up great