I usually put a layer of wax over the sealantIf you want to use a sealant I would use wolfgangs or poorboys. I have used Klasse products before they are good and usually cheap but my problem with Klasse sealant is that they claim their product will stay on the car for 12 months which is BS unless your car is parked in the garage under a tarp for that time. Also the sealant once dried is much harder to take off than the Poorboys or Wolfgangs. If you want more protection and shine you can layer the sealant with the wax. Just make sure when you are applying the sealant to let the sealant sit on the car for about 45 minutes before taking it off.