The main difference between paste and liquid waxes is that paste is thick and comes in a can. It's also typically softer than liquid carnauba. So yes, carnauba paste will last longer than its liquid counterpart because it won't evaporate as quickly as a liquid. However, there are drawbacks: Paste has to be applied more thoroughly to protect your paint from oxidation. And it does leave behind an oily residue that can attract dirt if you don't wash your vehicle soon after application.