has anyone used Permatex Rust Treatment. its not Navey jell but I been told that it works / BUT I love to here from some one that used it. if it works and it will not harm a new paint job !!! From there web site Permatex® Rust Treatment
formatting link
one-step rust treatment that destroys old rust, prevents new rust.Just brush or spray it on. Within minutes, rust disappears and a durableblack polymer coating develops. Excellent protective primer. Leaves a toughcoating you can paint over. Specially formulated to be used with body fillerand fiberglass. Aerosol - Level 2*