Carnauba wax is resistant to UV rays, which means it provides complete protection from the sun. Continuous exposure to UV rays can lead to fading, discoloration, and oxidation of your vehicle. Additionally, due to the high melting temperatures of the wax, your car won't be damaged even on high-temp days outdoors.
Since carnauba wax is hydrophobic, meaning resistant to water, it will repel water that can potentially damage your paint job from things such as rainwater. Along with this, carnauba wax results in excellent mirror shine, making it aesthetically pleasing.
Since carnauba wax is naturally hard, it needs to be rubbed into the surface to get the best shine. Additionally, this wax tends to sit on the surface, therefore, it wears off quickly. However, you can apply multiple coats for added protection. It's important to note that you can also get carnauba wax in the form of a spray to make applying a lot more easy and convenient.
The cure time for carnauba wax is anywhere from 1-24 hours. With that said, if you want to add a second layer, it's best to wait at least a day before applying. With carnauba wax, you can expect to reapply anywhere from 3-8 weeks.