Versachem 90180 Heavy-Duty Fuel Tank Repair Kit - 30 Grams

I used this to repair a 2003 TTR-125 L dirtbike fuel tank.The tank is plastic and has a significant crak about 7 inches in length and 1/8" wide at the middle, and a little less towards the ends. The crack was towards the top of the tank and ran along the upper side of the tank fairings, parallel to the ground. This is a common crack on these dirtbike fuel tanks.A new tank is $225 and a used one around $130. As the bike is just a beater, those costs were much too high. The previous owner attempted to repair the tank with some sort of epoxy, but it failed miserably and leaked fuel all over.I used this product and followed the directions completely with additional precautions taken to ensure success. I drained the tank, aired it out overnight, knocked off the old epoxy, sanded the crack with one inch on all sides, cleaned the area with CRC Brake Cleaner, warmed the tank inside the house and applied the epoxy mix.Note that at first, the epoxy went on with some viscosity and stayed where I put in. In about 30-45 seconds it became quite warm, almost hot, and was much more water-like in viscosity. I had to tilt the tank to keep it from running off. Prepare accordingly.Now, for the result. The tank is sealed! The bike was taken for multiple rides with new and experienced riders, some of whom lightly crashed, but the epoxy is still holding strong. I am very satisfied. The package includes a fiberglass cloth that goes over the first coat and then you apply a second coat on top. I think this really helps to keep everything together versus just plain epoxy.Time will tell on the longevity, but so far it is working very well. Even if I have to reapply every few years, it's worth the effort to save $200+.

Don’t waste your money I should have read the reviews

#2 fuel oil or diesel fuel leaks are very hard to stop with chemical sealing products. I've tried many such asJB Weld (which works well putting broken things together) but if the tank is leaking they won't work.I had a very small seeping leak on a 3 year old 275 gallon heating oil tank. The tank was full. The leak was on the very bottom of the tank. I wiped off the oil with a rag then wiped it off again using a rag soaked with rubbing alcohol. The leak appeared after about 5 seconds of watching. I sanded the area to bare metal the wiped it off again and saw the area of the weeping leak . This kit comes with a small cube of some kind of stuff. But the directions say to rub the leak area with it so I did. I was amazed to see the seep stopped. The cube of stuff, which seemed quite hard produced a stickyness that stopped the leak! I cut a 1" square of fiberglass that came with the kit, mixed up a small amount of the two part materiel and put it on one side of the fiberglass patch and pressed it against where the leak was on the tank. I used a small flat piece of wood instead of the brush they supply to spread the rest of the stuff on the patch and it hardened in about 5 minutes. I had much more of the two part material left so I mixed up about the same amount and spread it over a little larger area to reinforce it. The tank does not leak anymore.Product worked very well for me.

The only product I found that can be applied on a dripping fuel tank. I had a small cut on the bottom of a plastic fuel tank that was slowly dripping. All other products I tried would dissolve in the leaking fuel and not fully seal after drying. This is the only product that sealed the tank. If applied on a dripping hole wait a little longer before applying it, it will be less liquid and not wash out that easy because of the fuel. Dries very fast so be prepared! On a plastic fuel tank this is still just a temporary fix; the patch becomes so hard that it will crack and leak after the plastic tank deforms a couple of times after refills and driving around.

So I bought two of these for repairing a 3/8th size hole in my tractors plastic fuel tank. Literally says all over the package not for plastic tanks so I was more then a little apprehensive but seeing I didn't have allot of options other then 800 bucks for a new tank I figured I try this. First time I used I didn't drain tank, I used a lag covered in this stuff and ran it into the tank. Needless to say that slowed the leak but didn't seal. Second go round I drained all fuel, sanded the area around the hole and cleaned the area to the best of my ability. I applies the mix as directed and placed the fiberglass patch over mixed product, by the time I placed the patch the mix was already hard enough I couldn't cover the patch as directed. So..... I opened another pack, mixed and then slathered the outside are of the patch allowing everything to throughly cure 24 hours prior to placing fuel back into tank. So far 60 hours later and no leaks. The other reviews about the mixture hardening very fast is correct, package says 5min, I'd say 2min max until the mix is unusable and hardening. Other wise time will tell, so far so good.