The KBS 3-Step Tank Sealer System is absolutely ideal for new tanks. If you leave a new tank uncoated, it will eventually rust leaving you with clogged fuel filters.
A very common misconception with sealing new tanks is that you do not need the KBS Klean and RustBlast. New tanks made of new steel are very slick and not an ideal surface for Tank Sealer to stick, so we always recommend KBS Klean and RustBlast to properly clean and etch the surface of the new tank so the Tank Sealer can bite in to the surface and adhere permanently.
Please check out the Complete Tank Sealer Directions and let us know if you have any additional questions.