J-B Weld8217 TankWeld Gas Tank Repair - 1 oz.,Dark Grey

This stuff is awesome. It's tacky and hardens quickly. To help ensure it would stick I wire wheel a good section of the paint.

It has been holding up well for quite a while now. I had a crack in my gas tank andit repaired it. It passed the state inspection as well. It works.

I have a 35-year-old metal 2-1/2 gallon gas can that I made the mistake of leaving sitting on a dirt and gravel floor. After a few years, the bottom had rusted a hole through. After sandblasting it, I found about 15 holes. They ranged in size from 1/2" to pin holes. I like the can, so I decided I'd try to fix it. I used metal prep to stabilize any remaining rust, let it dry well, and then used half of this tube. To cover about a third of the circumference lip where all the holes were. I tapered it back about a quarter of an inch. It sealed perfectly the first time.

Repaired a gas tank on my lawn tractor. Seems to hold, keeping the gas from leaking out. Will update as the summer progresses.

Gas tank on pressure cleaner was beginning to have a crack. Used a small quantity - combined until it turned dark gray and applied it to the area. Smoothing out to make sure it stuck to the plastic tank. Worked great.

Works like it should. Dries to a concrete hard finish.

Fixed a plastic commercial mower gas tank. If prepped right, works very well. Permanent fix.

Purchased it to fix out RV fuel tank if a criminal steals our fuel.Hopefully it works when we need it.