All this talk about sealants lasting longer than carnaubas might apply to most waxes but not Collinite Insulator Wax. This is the longest lasting product I have used period. It made a joke out of UPP and even held up better than Klasse SG. It is very easy to apply and remove and looks great. I would rate it's slickness up there with UPP but just slightly less on initial application. IW retains it's slickness much longer than UPP though. Also IW works well over anything. Don't have to worry about bonding issues like you do with a sealant.