A process for repair of leaking fuel tanks containing gasoline, diesel fuel, and benzene ethyl alcohol mixtures has been incorporated which makes it economically feasible for repair of all fuel tanks made of metal. The process includes prepairing the fuel tanks by steam cleaning, sand blasting, applying liquid polyvinyl chloride and special curing process. This process completely envelopes the fuel tank in a plastic cover which adheres to the metal of the tank and seals off any fuel leaks.
