TotalBoat Aluminum Boat Barrier Coat can be applied to any properly prepared aluminum surface, however, it should be noted that Aluminum Boat Barrier Coat is not designed to be in contact with diesel or gasoline fuels, and should not be applied to the inside of the tank. It should also be noted that aluminum fuel tanks are generally constructed from the most corrosion-resistant grades of aluminum, and should not require being coated for extra protection.
If any coatings, including Aluminum Boat Barrier Coat, are applied to improperly prepared aluminum fuel tanks, it will not adhere to oxidized aluminum or areas that have any traces of fuel on the surface.