3M Gloss Enhancer QD works really well with EX. The 3M product contains trace amounts of carnauba wax and a couple of types of alcohol. The combination seems to have a synergistic effect with EX.

The black Santa Fe looks better today after 5 weeks than it did the day I finished with the third coat of EX.

A bonus is that the 3M QD costs only $25.88 a gallon - delivered.