From what I seen and read, a synthetic paint sealant like FMJ will last longer than the Blitz wax. I've use the Blitz wax with very good results, but I now have the FMJ, which I'm about to try out. If you want the best of both, apply the FMJ first, and then a coat of Blitz over the FMJ. You'll then have a great shine with a long-lasting undercoat.