tas tank repair

[booger1]

I am trying to repair all the rust in the gas tank on my 93.  I am looking for the type of stuff you pour in and shake up to coat all the rust. does anyone know where I can get this stuff on the internet?

[Tallchevy]

Is this what your looking for 


http://www.kanter.com/fueltank.html

http://www.vintageagain.com/product_info.php/products_id/73

[Cheesemaker]

Why not get a new tank that isn't rusty to begin with?