Thanks for the replies, guys. I'll try the K2R spray, if I can find it.

But, that still doesn't solve the problem of the covering. I doubt I'll get it to stick again, and that red oracover they use is going to be impossible to find. And I don't think it's fair that I should have to spend another $30, and a day recovering an airplane that I just spent $200 for, all because they gave me a faulty fuel tank.

And, as mentioned above, maybe it is a good idea to throw away the stock tanks that come with ARFs, but there was nothing in the 4* instructions that said, 'throw away our stock tank cause it will leak and ruin your model'. In all due respect, a guy doesn't learn all the tricks in a matter of months, that it has taken most 20 years to learn. And it's awefully presumptious to assume that they should know.