We always recommend the Military Topcoat. It's less work since you do only one coat and it's a much harder finish that will keep your floor looking new for 15-20 years even in harsh climates with lots of road salts. If you have smaller vehicles that only go in and out of the garage a few times a day and or you live in a mild climate then you're fine with the standard topcoat. Our standard topcoat is very heavy duty and outperforms 99% of all other topcoats that are advertised as heavy duty. Next to properly prepping the floor the topcoat is the most important thing.