Seal a plastic gas tank?

Does anyone know anything that will patch a gash in the bottom of my plastic gas tank? I have tried numerous JB weld products. Unfortunately they only work on metal tanks. Mine is plastic. Seal all seems to work a little bit but still seems to be leaking a bit? Any ideas without having to buy a whole new freaking tank?
Seal a plastic gas tank?
I'm not sure how much that tank costs to replace but ou can get epoxy sealers


http://www.caswellplating.com/aids/epoxy...





that one is 32 bucks some are cheaper. They coat all of the tank.





**add on


Be careful about welding a gas tank it could kill you. If you do weld it use a car with a hose in the tail pipe and fill the tank with the exhast when you are welding it.


Allso the glue stick idea was a good one but glue sticks don't hold up well to gas.
Seal a plastic gas tank?
The tank is about $10 at the auto parts store. Get another one. It is not worth the fire risk to fix something like that.








Good Luck...
Reply:have you tried welding it with a soldering iron?
Reply:I have seen plastic weld kits at various stores. Harbor freight has them. Also in that situation,I would concider a hot glue gun and the various densities of glue sticks avalible. Make sure to work on a flushed tank or tank filled with water. The glue gun gets hot but safety first right. Gas doesn't burn, the vapor does.
Reply:I found some stuff at autozone called plastiweld, it's an epoxy just for that, but it is great, comes in what looks like two black plastic syringes together and when you push the two comes out even, mix it up and put it on, I just ran out fixing washer bottle and overflow bottle on daughters car, stuff was dry in 15 min, and makes jb weld look like crap, try some, I swear by it.